Home / 42,299.52-63,455.66-18,290.40

Finding the Fourth Proportional to 42,299.52, 63,455.66 and 18,290.40

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Solution

The fourth proportional to 42,299.52, 63,455.66 and 18,290.40 is: 27,438.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,299.52 : 63,455.66 = 18,290.40 : x
  2. Step 2: Convert to fraction form
    42,299.52/63,455.66 = 18,290.40/x
  3. Step 3: Cross multiply
    42,299.52x = 63,455.66 × 18,290.40
  4. Step 4: Simplify right side
    42,299.52x = 1,160,629,364.71
  5. Step 5: Solve for x
    x = 1,160,629,364.71/42,299.52
  6. Step 6: Final answer
    x = 27,438.36

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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.