Home / 40,465.56-60,707.36-12,389.55

Finding the Fourth Proportional to 40,465.56, 60,707.36 and 12,389.55

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Solution

The fourth proportional to 40,465.56, 60,707.36 and 12,389.55 is: 18,587.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,465.56 : 60,707.36 = 12,389.55 : x
  2. Step 2: Convert to fraction form
    40,465.56/60,707.36 = 12,389.55/x
  3. Step 3: Cross multiply
    40,465.56x = 60,707.36 × 12,389.55
  4. Step 4: Simplify right side
    40,465.56x = 752,136,872.09
  5. Step 5: Solve for x
    x = 752,136,872.09/40,465.56
  6. Step 6: Final answer
    x = 18,587.09

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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.