Home / 48,386.13-66,780.99-28,245.21

Finding the Fourth Proportional to 48,386.13, 66,780.99 and 28,245.21

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Solution

The fourth proportional to 48,386.13, 66,780.99 and 28,245.21 is: 38,983.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,386.13 : 66,780.99 = 28,245.21 : x
  2. Step 2: Convert to fraction form
    48,386.13/66,780.99 = 28,245.21/x
  3. Step 3: Cross multiply
    48,386.13x = 66,780.99 × 28,245.21
  4. Step 4: Simplify right side
    48,386.13x = 1,886,243,086.56
  5. Step 5: Solve for x
    x = 1,886,243,086.56/48,386.13
  6. Step 6: Final answer
    x = 38,983.14

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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.