Home / 23,420.91-32,319.09-12,810.18

Finding the Fourth Proportional to 23,420.91, 32,319.09 and 12,810.18

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Solution

The fourth proportional to 23,420.91, 32,319.09 and 12,810.18 is: 17,677.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,420.91 : 32,319.09 = 12,810.18 : x
  2. Step 2: Convert to fraction form
    23,420.91/32,319.09 = 12,810.18/x
  3. Step 3: Cross multiply
    23,420.91x = 32,319.09 × 12,810.18
  4. Step 4: Simplify right side
    23,420.91x = 414,013,360.34
  5. Step 5: Solve for x
    x = 414,013,360.34/23,420.91
  6. Step 6: Final answer
    x = 17,677.08

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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.