Home / 25,402.31-35,056.45-15,330.59

Finding the Fourth Proportional to 25,402.31, 35,056.45 and 15,330.59

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Solution

The fourth proportional to 25,402.31, 35,056.45 and 15,330.59 is: 21,156.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,402.31 : 35,056.45 = 15,330.59 : x
  2. Step 2: Convert to fraction form
    25,402.31/35,056.45 = 15,330.59/x
  3. Step 3: Cross multiply
    25,402.31x = 35,056.45 × 15,330.59
  4. Step 4: Simplify right side
    25,402.31x = 537,435,985.15
  5. Step 5: Solve for x
    x = 537,435,985.15/25,402.31
  6. Step 6: Final answer
    x = 21,156.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.