Home / 25,856.85-38,765.54-13,368.90

Finding the Fourth Proportional to 25,856.85, 38,765.54 and 13,368.90

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Solution

The fourth proportional to 25,856.85, 38,765.54 and 13,368.90 is: 20,043.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,856.85 : 38,765.54 = 13,368.90 : x
  2. Step 2: Convert to fraction form
    25,856.85/38,765.54 = 13,368.90/x
  3. Step 3: Cross multiply
    25,856.85x = 38,765.54 × 13,368.90
  4. Step 4: Simplify right side
    25,856.85x = 518,252,513.24
  5. Step 5: Solve for x
    x = 518,252,513.24/25,856.85
  6. Step 6: Final answer
    x = 20,043.15

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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.