Home / 42,438.20-58,565.82-25,445.21

Finding the Fourth Proportional to 42,438.20, 58,565.82 and 25,445.21

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Solution

The fourth proportional to 42,438.20, 58,565.82 and 25,445.21 is: 35,115.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,438.20 : 58,565.82 = 25,445.21 : x
  2. Step 2: Convert to fraction form
    42,438.20/58,565.82 = 25,445.21/x
  3. Step 3: Cross multiply
    42,438.20x = 58,565.82 × 25,445.21
  4. Step 4: Simplify right side
    42,438.20x = 1,490,219,588.72
  5. Step 5: Solve for x
    x = 1,490,219,588.72/42,438.20
  6. Step 6: Final answer
    x = 35,115.05

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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.