Home / 40,412.79-60,622.29-12,335.31

Finding the Fourth Proportional to 40,412.79, 60,622.29 and 12,335.31

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Solution

The fourth proportional to 40,412.79, 60,622.29 and 12,335.31 is: 18,503.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,412.79 : 60,622.29 = 12,335.31 : x
  2. Step 2: Convert to fraction form
    40,412.79/60,622.29 = 12,335.31/x
  3. Step 3: Cross multiply
    40,412.79x = 60,622.29 × 12,335.31
  4. Step 4: Simplify right side
    40,412.79x = 747,794,740.06
  5. Step 5: Solve for x
    x = 747,794,740.06/40,412.79
  6. Step 6: Final answer
    x = 18,503.91

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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.