Home / 28,335.04-39,101.80-15,759.52

Finding the Fourth Proportional to 28,335.04, 39,101.80 and 15,759.52

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Solution

The fourth proportional to 28,335.04, 39,101.80 and 15,759.52 is: 21,747.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,335.04 : 39,101.80 = 15,759.52 : x
  2. Step 2: Convert to fraction form
    28,335.04/39,101.80 = 15,759.52/x
  3. Step 3: Cross multiply
    28,335.04x = 39,101.80 × 15,759.52
  4. Step 4: Simplify right side
    28,335.04x = 616,225,599.14
  5. Step 5: Solve for x
    x = 616,225,599.14/28,335.04
  6. Step 6: Final answer
    x = 21,747.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.