Home / 20,473.65-28,254.18-11,521.47

Finding the Fourth Proportional to 20,473.65, 28,254.18 and 11,521.47

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Solution

The fourth proportional to 20,473.65, 28,254.18 and 11,521.47 is: 15,899.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,473.65 : 28,254.18 = 11,521.47 : x
  2. Step 2: Convert to fraction form
    20,473.65/28,254.18 = 11,521.47/x
  3. Step 3: Cross multiply
    20,473.65x = 28,254.18 × 11,521.47
  4. Step 4: Simplify right side
    20,473.65x = 325,529,687.24
  5. Step 5: Solve for x
    x = 325,529,687.24/20,473.65
  6. Step 6: Final answer
    x = 15,899.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.