Home / 42,565.35-63,825.85-15,889.40

Finding the Fourth Proportional to 42,565.35, 63,825.85 and 15,889.40

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Solution

The fourth proportional to 42,565.35, 63,825.85 and 15,889.40 is: 23,825.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,565.35 : 63,825.85 = 15,889.40 : x
  2. Step 2: Convert to fraction form
    42,565.35/63,825.85 = 15,889.40/x
  3. Step 3: Cross multiply
    42,565.35x = 63,825.85 × 15,889.40
  4. Step 4: Simplify right side
    42,565.35x = 1,014,154,460.99
  5. Step 5: Solve for x
    x = 1,014,154,460.99/42,565.35
  6. Step 6: Final answer
    x = 23,825.82

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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.