Home / 25,856.71-38,765.33-13,368.76

Finding the Fourth Proportional to 25,856.71, 38,765.33 and 13,368.76

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Solution

The fourth proportional to 25,856.71, 38,765.33 and 13,368.76 is: 20,042.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,856.71 : 38,765.33 = 13,368.76 : x
  2. Step 2: Convert to fraction form
    25,856.71/38,765.33 = 13,368.76/x
  3. Step 3: Cross multiply
    25,856.71x = 38,765.33 × 13,368.76
  4. Step 4: Simplify right side
    25,856.71x = 518,244,279.47
  5. Step 5: Solve for x
    x = 518,244,279.47/25,856.71
  6. Step 6: Final answer
    x = 20,042.93

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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.