Home / 20,028.16-27,641.28-12,574.72

Finding the Fourth Proportional to 20,028.16, 27,641.28 and 12,574.72

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Solution

The fourth proportional to 20,028.16, 27,641.28 and 12,574.72 is: 17,354.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,028.16 : 27,641.28 = 12,574.72 : x
  2. Step 2: Convert to fraction form
    20,028.16/27,641.28 = 12,574.72/x
  3. Step 3: Cross multiply
    20,028.16x = 27,641.28 × 12,574.72
  4. Step 4: Simplify right side
    20,028.16x = 347,581,356.44
  5. Step 5: Solve for x
    x = 347,581,356.44/20,028.16
  6. Step 6: Final answer
    x = 17,354.63

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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.