Home / 47,979.09-66,189.74-27,824.30

Finding the Fourth Proportional to 47,979.09, 66,189.74 and 27,824.30

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Solution

The fourth proportional to 47,979.09, 66,189.74 and 27,824.30 is: 38,385.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,979.09 : 66,189.74 = 27,824.30 : x
  2. Step 2: Convert to fraction form
    47,979.09/66,189.74 = 27,824.30/x
  3. Step 3: Cross multiply
    47,979.09x = 66,189.74 × 27,824.30
  4. Step 4: Simplify right side
    47,979.09x = 1,841,683,417.72
  5. Step 5: Solve for x
    x = 1,841,683,417.72/47,979.09
  6. Step 6: Final answer
    x = 38,385.13

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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.