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Finding the Fourth Proportional to 28,325.01, 42,487.50 and 13,488.95

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Solution

The fourth proportional to 28,325.01, 42,487.50 and 13,488.95 is: 20,233.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,325.01 : 42,487.50 = 13,488.95 : x
  2. Step 2: Convert to fraction form
    28,325.01/42,487.50 = 13,488.95/x
  3. Step 3: Cross multiply
    28,325.01x = 42,487.50 × 13,488.95
  4. Step 4: Simplify right side
    28,325.01x = 573,111,550.69
  5. Step 5: Solve for x
    x = 573,111,550.69/28,325.01
  6. Step 6: Final answer
    x = 20,233.41

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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.