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Finding the Fourth Proportional to 28,237.70, 42,360.47 and 9,523.10

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Solution

The fourth proportional to 28,237.70, 42,360.47 and 9,523.10 is: 14,285.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,237.70 : 42,360.47 = 9,523.10 : x
  2. Step 2: Convert to fraction form
    28,237.70/42,360.47 = 9,523.10/x
  3. Step 3: Cross multiply
    28,237.70x = 42,360.47 × 9,523.10
  4. Step 4: Simplify right side
    28,237.70x = 403,402,991.86
  5. Step 5: Solve for x
    x = 403,402,991.86/28,237.70
  6. Step 6: Final answer
    x = 14,285.97

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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.