Home / 28,502.50-39,333.45-15,928.42

Finding the Fourth Proportional to 28,502.50, 39,333.45 and 15,928.42

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Solution

The fourth proportional to 28,502.50, 39,333.45 and 15,928.42 is: 21,981.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,502.50 : 39,333.45 = 15,928.42 : x
  2. Step 2: Convert to fraction form
    28,502.50/39,333.45 = 15,928.42/x
  3. Step 3: Cross multiply
    28,502.50x = 39,333.45 × 15,928.42
  4. Step 4: Simplify right side
    28,502.50x = 626,519,711.65
  5. Step 5: Solve for x
    x = 626,519,711.65/28,502.50
  6. Step 6: Final answer
    x = 21,981.22

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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.