Home / 30,185.02-45,275.46-9,125.65

Finding the Fourth Proportional to 30,185.02, 45,275.46 and 9,125.65

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Solution

The fourth proportional to 30,185.02, 45,275.46 and 9,125.65 is: 13,687.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,185.02 : 45,275.46 = 9,125.65 : x
  2. Step 2: Convert to fraction form
    30,185.02/45,275.46 = 9,125.65/x
  3. Step 3: Cross multiply
    30,185.02x = 45,275.46 × 9,125.65
  4. Step 4: Simplify right side
    30,185.02x = 413,168,001.55
  5. Step 5: Solve for x
    x = 413,168,001.55/30,185.02
  6. Step 6: Final answer
    x = 13,687.85

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Double scale
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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.