Home / 25,557.16-38,331.66-13,086.40

Finding the Fourth Proportional to 25,557.16, 38,331.66 and 13,086.40

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Solution

The fourth proportional to 25,557.16, 38,331.66 and 13,086.40 is: 19,627.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,557.16 : 38,331.66 = 13,086.40 : x
  2. Step 2: Convert to fraction form
    25,557.16/38,331.66 = 13,086.40/x
  3. Step 3: Cross multiply
    25,557.16x = 38,331.66 × 13,086.40
  4. Step 4: Simplify right side
    25,557.16x = 501,623,435.42
  5. Step 5: Solve for x
    x = 501,623,435.42/25,557.16
  6. Step 6: Final answer
    x = 19,627.51

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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.