Home / 40,302.48-60,430.35-13,639.61

Finding the Fourth Proportional to 40,302.48, 60,430.35 and 13,639.61

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Solution

The fourth proportional to 40,302.48, 60,430.35 and 13,639.61 is: 20,451.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,302.48 : 60,430.35 = 13,639.61 : x
  2. Step 2: Convert to fraction form
    40,302.48/60,430.35 = 13,639.61/x
  3. Step 3: Cross multiply
    40,302.48x = 60,430.35 × 13,639.61
  4. Step 4: Simplify right side
    40,302.48x = 824,246,608.39
  5. Step 5: Solve for x
    x = 824,246,608.39/40,302.48
  6. Step 6: Final answer
    x = 20,451.51

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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.