Home / 20,494.74-28,263.81-15,202.74

Finding the Fourth Proportional to 20,494.74, 28,263.81 and 15,202.74

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Solution

The fourth proportional to 20,494.74, 28,263.81 and 15,202.74 is: 20,965.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,494.74 : 28,263.81 = 15,202.74 : x
  2. Step 2: Convert to fraction form
    20,494.74/28,263.81 = 15,202.74/x
  3. Step 3: Cross multiply
    20,494.74x = 28,263.81 × 15,202.74
  4. Step 4: Simplify right side
    20,494.74x = 429,687,354.84
  5. Step 5: Solve for x
    x = 429,687,354.84/20,494.74
  6. Step 6: Final answer
    x = 20,965.74

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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.