Home / 48,507.21-66,948.12-28,086.30

Finding the Fourth Proportional to 48,507.21, 66,948.12 and 28,086.30

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Solution

The fourth proportional to 48,507.21, 66,948.12 and 28,086.30 is: 38,763.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,507.21 : 66,948.12 = 28,086.30 : x
  2. Step 2: Convert to fraction form
    48,507.21/66,948.12 = 28,086.30/x
  3. Step 3: Cross multiply
    48,507.21x = 66,948.12 × 28,086.30
  4. Step 4: Simplify right side
    48,507.21x = 1,880,324,982.76
  5. Step 5: Solve for x
    x = 1,880,324,982.76/48,507.21
  6. Step 6: Final answer
    x = 38,763.82

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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.