Home / 23,389.18-32,276.12-12,779.18

Finding the Fourth Proportional to 23,389.18, 32,276.12 and 12,779.18

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Solution

The fourth proportional to 23,389.18, 32,276.12 and 12,779.18 is: 17,634.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,389.18 : 32,276.12 = 12,779.18 : x
  2. Step 2: Convert to fraction form
    23,389.18/32,276.12 = 12,779.18/x
  3. Step 3: Cross multiply
    23,389.18x = 32,276.12 × 12,779.18
  4. Step 4: Simplify right side
    23,389.18x = 412,462,347.18
  5. Step 5: Solve for x
    x = 412,462,347.18/23,389.18
  6. Step 6: Final answer
    x = 17,634.75

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Half scale
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Double scale
Find fourth proportional to 23,390.18, 32,277.50 and 12,780.18
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.