Home / 20,474.04-28,258.25-13,293.93

Finding the Fourth Proportional to 20,474.04, 28,258.25 and 13,293.93

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Solution

The fourth proportional to 20,474.04, 28,258.25 and 13,293.93 is: 18,348.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,474.04 : 28,258.25 = 13,293.93 : x
  2. Step 2: Convert to fraction form
    20,474.04/28,258.25 = 13,293.93/x
  3. Step 3: Cross multiply
    20,474.04x = 28,258.25 × 13,293.93
  4. Step 4: Simplify right side
    20,474.04x = 375,663,130.95
  5. Step 5: Solve for x
    x = 375,663,130.95/20,474.04
  6. Step 6: Final answer
    x = 18,348.27

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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.