Home / 28,609.65-42,909.57-7,549.91

Finding the Fourth Proportional to 28,609.65, 42,909.57 and 7,549.91

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Solution

The fourth proportional to 28,609.65, 42,909.57 and 7,549.91 is: 11,323.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,609.65 : 42,909.57 = 7,549.91 : x
  2. Step 2: Convert to fraction form
    28,609.65/42,909.57 = 7,549.91/x
  3. Step 3: Cross multiply
    28,609.65x = 42,909.57 × 7,549.91
  4. Step 4: Simplify right side
    28,609.65x = 323,963,177.09
  5. Step 5: Solve for x
    x = 323,963,177.09/28,609.65
  6. Step 6: Final answer
    x = 11,323.56

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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.