Home / 40,436.74-60,655.11-12,355.66

Finding the Fourth Proportional to 40,436.74, 60,655.11 and 12,355.66

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Solution

The fourth proportional to 40,436.74, 60,655.11 and 12,355.66 is: 18,533.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,436.74 : 60,655.11 = 12,355.66 : x
  2. Step 2: Convert to fraction form
    40,436.74/60,655.11 = 12,355.66/x
  3. Step 3: Cross multiply
    40,436.74x = 60,655.11 × 12,355.66
  4. Step 4: Simplify right side
    40,436.74x = 749,433,916.42
  5. Step 5: Solve for x
    x = 749,433,916.42/40,436.74
  6. Step 6: Final answer
    x = 18,533.49

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1.5x scale

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.