Home / 28,901.61-43,351.76-13,319.24

Finding the Fourth Proportional to 28,901.61, 43,351.76 and 13,319.24

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Solution

The fourth proportional to 28,901.61, 43,351.76 and 13,319.24 is: 19,978.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,901.61 : 43,351.76 = 13,319.24 : x
  2. Step 2: Convert to fraction form
    28,901.61/43,351.76 = 13,319.24/x
  3. Step 3: Cross multiply
    28,901.61x = 43,351.76 × 13,319.24
  4. Step 4: Simplify right side
    28,901.61x = 577,412,237.48
  5. Step 5: Solve for x
    x = 577,412,237.48/28,901.61
  6. Step 6: Final answer
    x = 19,978.55

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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.