Home / 23,420.66-32,321.28-12,810.30

Finding the Fourth Proportional to 23,420.66, 32,321.28 and 12,810.30

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Solution

The fourth proportional to 23,420.66, 32,321.28 and 12,810.30 is: 17,678.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,420.66 : 32,321.28 = 12,810.30 : x
  2. Step 2: Convert to fraction form
    23,420.66/32,321.28 = 12,810.30/x
  3. Step 3: Cross multiply
    23,420.66x = 32,321.28 × 12,810.30
  4. Step 4: Simplify right side
    23,420.66x = 414,045,220.02
  5. Step 5: Solve for x
    x = 414,045,220.02/23,420.66
  6. Step 6: Final answer
    x = 17,678.63

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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.