Home / 25,430.22-38,142.90-15,564.42

Finding the Fourth Proportional to 25,430.22, 38,142.90 and 15,564.42

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Solution

The fourth proportional to 25,430.22, 38,142.90 and 15,564.42 is: 23,345.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,430.22 : 38,142.90 = 15,564.42 : x
  2. Step 2: Convert to fraction form
    25,430.22/38,142.90 = 15,564.42/x
  3. Step 3: Cross multiply
    25,430.22x = 38,142.90 × 15,564.42
  4. Step 4: Simplify right side
    25,430.22x = 593,672,115.62
  5. Step 5: Solve for x
    x = 593,672,115.62/25,430.22
  6. Step 6: Final answer
    x = 23,345.14

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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.