Home / 28,384.50-39,167.65-17,480.90

Finding the Fourth Proportional to 28,384.50, 39,167.65 and 17,480.90

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Solution

The fourth proportional to 28,384.50, 39,167.65 and 17,480.90 is: 24,121.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,384.50 : 39,167.65 = 17,480.90 : x
  2. Step 2: Convert to fraction form
    28,384.50/39,167.65 = 17,480.90/x
  3. Step 3: Cross multiply
    28,384.50x = 39,167.65 × 17,480.90
  4. Step 4: Simplify right side
    28,384.50x = 684,685,772.89
  5. Step 5: Solve for x
    x = 684,685,772.89/28,384.50
  6. Step 6: Final answer
    x = 24,121.82

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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.