Home / 28,488.04-42,747.36-11,859.55

Finding the Fourth Proportional to 28,488.04, 42,747.36 and 11,859.55

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Solution

The fourth proportional to 28,488.04, 42,747.36 and 11,859.55 is: 17,795.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,488.04 : 42,747.36 = 11,859.55 : x
  2. Step 2: Convert to fraction form
    28,488.04/42,747.36 = 11,859.55/x
  3. Step 3: Cross multiply
    28,488.04x = 42,747.36 × 11,859.55
  4. Step 4: Simplify right side
    28,488.04x = 506,964,453.29
  5. Step 5: Solve for x
    x = 506,964,453.29/28,488.04
  6. Step 6: Final answer
    x = 17,795.69

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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.