Home / 42,438.11-58,565-23,317.57

Finding the Fourth Proportional to 42,438.11, 58,565 and 23,317.57

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Solution

The fourth proportional to 42,438.11, 58,565 and 23,317.57 is: 32,178.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,438.11 : 58,565 = 23,317.57 : x
  2. Step 2: Convert to fraction form
    42,438.11/58,565 = 23,317.57/x
  3. Step 3: Cross multiply
    42,438.11x = 58,565 × 23,317.57
  4. Step 4: Simplify right side
    42,438.11x = 1,365,593,487.05
  5. Step 5: Solve for x
    x = 1,365,593,487.05/42,438.11
  6. Step 6: Final answer
    x = 32,178.47

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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.