Home / 40,411.38-60,615.64-12,330.30

Finding the Fourth Proportional to 40,411.38, 60,615.64 and 12,330.30

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Solution

The fourth proportional to 40,411.38, 60,615.64 and 12,330.30 is: 18,495.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,411.38 : 60,615.64 = 12,330.30 : x
  2. Step 2: Convert to fraction form
    40,411.38/60,615.64 = 12,330.30/x
  3. Step 3: Cross multiply
    40,411.38x = 60,615.64 × 12,330.30
  4. Step 4: Simplify right side
    40,411.38x = 747,409,025.89
  5. Step 5: Solve for x
    x = 747,409,025.89/40,411.38
  6. Step 6: Final answer
    x = 18,495.01

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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.