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Finding the Fourth Proportional to 25,290, 37,909.08 and 10,507.50

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Solution

The fourth proportional to 25,290, 37,909.08 and 10,507.50 is: 15,750.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,290 : 37,909.08 = 10,507.50 : x
  2. Step 2: Convert to fraction form
    25,290/37,909.08 = 10,507.50/x
  3. Step 3: Cross multiply
    25,290x = 37,909.08 × 10,507.50
  4. Step 4: Simplify right side
    25,290x = 398,329,658.10
  5. Step 5: Solve for x
    x = 398,329,658.10/25,290
  6. Step 6: Final answer
    x = 15,750.48

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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.