Home / 25,430.61-38,139.07-10,636.47

Finding the Fourth Proportional to 25,430.61, 38,139.07 and 10,636.47

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Solution

The fourth proportional to 25,430.61, 38,139.07 and 10,636.47 is: 15,951.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,430.61 : 38,139.07 = 10,636.47 : x
  2. Step 2: Convert to fraction form
    25,430.61/38,139.07 = 10,636.47/x
  3. Step 3: Cross multiply
    25,430.61x = 38,139.07 × 10,636.47
  4. Step 4: Simplify right side
    25,430.61x = 405,665,073.88
  5. Step 5: Solve for x
    x = 405,665,073.88/25,430.61
  6. Step 6: Final answer
    x = 15,951.84

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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.