Home / 25,520.31-38,304.70-15,678.81

Finding the Fourth Proportional to 25,520.31, 38,304.70 and 15,678.81

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Solution

The fourth proportional to 25,520.31, 38,304.70 and 15,678.81 is: 23,533.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,520.31 : 38,304.70 = 15,678.81 : x
  2. Step 2: Convert to fraction form
    25,520.31/38,304.70 = 15,678.81/x
  3. Step 3: Cross multiply
    25,520.31x = 38,304.70 × 15,678.81
  4. Step 4: Simplify right side
    25,520.31x = 600,572,074.21
  5. Step 5: Solve for x
    x = 600,572,074.21/25,520.31
  6. Step 6: Final answer
    x = 23,533.10

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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.