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Finding the Fourth Proportional to 28,337.28, 42,497.28 and 7,558.08

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Solution

The fourth proportional to 28,337.28, 42,497.28 and 7,558.08 is: 11,334.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,337.28 : 42,497.28 = 7,558.08 : x
  2. Step 2: Convert to fraction form
    28,337.28/42,497.28 = 7,558.08/x
  3. Step 3: Cross multiply
    28,337.28x = 42,497.28 × 7,558.08
  4. Step 4: Simplify right side
    28,337.28x = 321,197,842.02
  5. Step 5: Solve for x
    x = 321,197,842.02/28,337.28
  6. Step 6: Final answer
    x = 11,334.82

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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.