Home / 28,870.30-43,306.67-9,148.42

Finding the Fourth Proportional to 28,870.30, 43,306.67 and 9,148.42

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Solution

The fourth proportional to 28,870.30, 43,306.67 and 9,148.42 is: 13,723.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,870.30 : 43,306.67 = 9,148.42 : x
  2. Step 2: Convert to fraction form
    28,870.30/43,306.67 = 9,148.42/x
  3. Step 3: Cross multiply
    28,870.30x = 43,306.67 × 9,148.42
  4. Step 4: Simplify right side
    28,870.30x = 396,187,451.95
  5. Step 5: Solve for x
    x = 396,187,451.95/28,870.30
  6. Step 6: Final answer
    x = 13,723.01

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1.5x scale

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.