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Finding the Fourth Proportional to 28,542.02, 42,813.03 and 15,477.13

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Solution

The fourth proportional to 28,542.02, 42,813.03 and 15,477.13 is: 23,215.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,542.02 : 42,813.03 = 15,477.13 : x
  2. Step 2: Convert to fraction form
    28,542.02/42,813.03 = 15,477.13/x
  3. Step 3: Cross multiply
    28,542.02x = 42,813.03 × 15,477.13
  4. Step 4: Simplify right side
    28,542.02x = 662,622,616.94
  5. Step 5: Solve for x
    x = 662,622,616.94/28,542.02
  6. Step 6: Final answer
    x = 23,215.69

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.