Home / 42,863.20-64,301.64-13,274.08

Finding the Fourth Proportional to 42,863.20, 64,301.64 and 13,274.08

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Solution

The fourth proportional to 42,863.20, 64,301.64 and 13,274.08 is: 19,913.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,863.20 : 64,301.64 = 13,274.08 : x
  2. Step 2: Convert to fraction form
    42,863.20/64,301.64 = 13,274.08/x
  3. Step 3: Cross multiply
    42,863.20x = 64,301.64 × 13,274.08
  4. Step 4: Simplify right side
    42,863.20x = 853,545,113.49
  5. Step 5: Solve for x
    x = 853,545,113.49/42,863.20
  6. Step 6: Final answer
    x = 19,913.24

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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.