Home / 22,780.83-31,420.57-16,729.16

Finding the Fourth Proportional to 22,780.83, 31,420.57 and 16,729.16

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Solution

The fourth proportional to 22,780.83, 31,420.57 and 16,729.16 is: 23,073.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,780.83 : 31,420.57 = 16,729.16 : x
  2. Step 2: Convert to fraction form
    22,780.83/31,420.57 = 16,729.16/x
  3. Step 3: Cross multiply
    22,780.83x = 31,420.57 × 16,729.16
  4. Step 4: Simplify right side
    22,780.83x = 525,639,779.55
  5. Step 5: Solve for x
    x = 525,639,779.55/22,780.83
  6. Step 6: Final answer
    x = 23,073.78

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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.