Home / 47,721.48-65,865.30-27,579.20

Finding the Fourth Proportional to 47,721.48, 65,865.30 and 27,579.20

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Solution

The fourth proportional to 47,721.48, 65,865.30 and 27,579.20 is: 38,064.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,721.48 : 65,865.30 = 27,579.20 : x
  2. Step 2: Convert to fraction form
    47,721.48/65,865.30 = 27,579.20/x
  3. Step 3: Cross multiply
    47,721.48x = 65,865.30 × 27,579.20
  4. Step 4: Simplify right side
    47,721.48x = 1,816,512,281.76
  5. Step 5: Solve for x
    x = 1,816,512,281.76/47,721.48
  6. Step 6: Final answer
    x = 38,064.88

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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.