Home / 28,776.79-39,711.85-16,030.12

Finding the Fourth Proportional to 28,776.79, 39,711.85 and 16,030.12

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Solution

The fourth proportional to 28,776.79, 39,711.85 and 16,030.12 is: 22,121.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,776.79 : 39,711.85 = 16,030.12 : x
  2. Step 2: Convert to fraction form
    28,776.79/39,711.85 = 16,030.12/x
  3. Step 3: Cross multiply
    28,776.79x = 39,711.85 × 16,030.12
  4. Step 4: Simplify right side
    28,776.79x = 636,585,746.20
  5. Step 5: Solve for x
    x = 636,585,746.20/28,776.79
  6. Step 6: Final answer
    x = 22,121.50

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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.