Home / 28,870.24-43,306.56-9,148.36

Finding the Fourth Proportional to 28,870.24, 43,306.56 and 9,148.36

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Solution

The fourth proportional to 28,870.24, 43,306.56 and 9,148.36 is: 13,722.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,870.24 : 43,306.56 = 9,148.36 : x
  2. Step 2: Convert to fraction form
    28,870.24/43,306.56 = 9,148.36/x
  3. Step 3: Cross multiply
    28,870.24x = 43,306.56 × 9,148.36
  4. Step 4: Simplify right side
    28,870.24x = 396,184,001.24
  5. Step 5: Solve for x
    x = 396,184,001.24/28,870.24
  6. Step 6: Final answer
    x = 13,722.92

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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.