Home / 28,050.71-38,711.12-16,117.79

Finding the Fourth Proportional to 28,050.71, 38,711.12 and 16,117.79

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Solution

The fourth proportional to 28,050.71, 38,711.12 and 16,117.79 is: 22,243.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,050.71 : 38,711.12 = 16,117.79 : x
  2. Step 2: Convert to fraction form
    28,050.71/38,711.12 = 16,117.79/x
  3. Step 3: Cross multiply
    28,050.71x = 38,711.12 × 16,117.79
  4. Step 4: Simplify right side
    28,050.71x = 623,937,428.68
  5. Step 5: Solve for x
    x = 623,937,428.68/28,050.71
  6. Step 6: Final answer
    x = 22,243.20

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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.