Home / 47,853.56-66,028.28-28,979.76

Finding the Fourth Proportional to 47,853.56, 66,028.28 and 28,979.76

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Solution

The fourth proportional to 47,853.56, 66,028.28 and 28,979.76 is: 39,986.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,853.56 : 66,028.28 = 28,979.76 : x
  2. Step 2: Convert to fraction form
    47,853.56/66,028.28 = 28,979.76/x
  3. Step 3: Cross multiply
    47,853.56x = 66,028.28 × 28,979.76
  4. Step 4: Simplify right side
    47,853.56x = 1,913,483,707.61
  5. Step 5: Solve for x
    x = 1,913,483,707.61/47,853.56
  6. Step 6: Final answer
    x = 39,986.24

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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.