Home / 40,290.64-60,435.96-12,588.64

Finding the Fourth Proportional to 40,290.64, 60,435.96 and 12,588.64

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Solution

The fourth proportional to 40,290.64, 60,435.96 and 12,588.64 is: 18,882.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,290.64 : 60,435.96 = 12,588.64 : x
  2. Step 2: Convert to fraction form
    40,290.64/60,435.96 = 12,588.64/x
  3. Step 3: Cross multiply
    40,290.64x = 60,435.96 × 12,588.64
  4. Step 4: Simplify right side
    40,290.64x = 760,806,543.49
  5. Step 5: Solve for x
    x = 760,806,543.49/40,290.64
  6. Step 6: Final answer
    x = 18,882.96

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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.