Home / 25,430.89-38,154.30-11,402.68

Finding the Fourth Proportional to 25,430.89, 38,154.30 and 11,402.68

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Solution

The fourth proportional to 25,430.89, 38,154.30 and 11,402.68 is: 17,107.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,430.89 : 38,154.30 = 11,402.68 : x
  2. Step 2: Convert to fraction form
    25,430.89/38,154.30 = 11,402.68/x
  3. Step 3: Cross multiply
    25,430.89x = 38,154.30 × 11,402.68
  4. Step 4: Simplify right side
    25,430.89x = 435,061,273.52
  5. Step 5: Solve for x
    x = 435,061,273.52/25,430.89
  6. Step 6: Final answer
    x = 17,107.59

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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.