Home / 28,275.71-39,025.28-16,345.96

Finding the Fourth Proportional to 28,275.71, 39,025.28 and 16,345.96

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Solution

The fourth proportional to 28,275.71, 39,025.28 and 16,345.96 is: 22,560.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,275.71 : 39,025.28 = 16,345.96 : x
  2. Step 2: Convert to fraction form
    28,275.71/39,025.28 = 16,345.96/x
  3. Step 3: Cross multiply
    28,275.71x = 39,025.28 × 16,345.96
  4. Step 4: Simplify right side
    28,275.71x = 637,905,694.22
  5. Step 5: Solve for x
    x = 637,905,694.22/28,275.71
  6. Step 6: Final answer
    x = 22,560.20

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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.