Home / 43,419.13-65,127.47-13,838.74

Finding the Fourth Proportional to 43,419.13, 65,127.47 and 13,838.74

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Solution

The fourth proportional to 43,419.13, 65,127.47 and 13,838.74 is: 20,757.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,419.13 : 65,127.47 = 13,838.74 : x
  2. Step 2: Convert to fraction form
    43,419.13/65,127.47 = 13,838.74/x
  3. Step 3: Cross multiply
    43,419.13x = 65,127.47 × 13,838.74
  4. Step 4: Simplify right side
    43,419.13x = 901,281,892.18
  5. Step 5: Solve for x
    x = 901,281,892.18/43,419.13
  6. Step 6: Final answer
    x = 20,757.72

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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.