Home / 27,851.52-38,437.13-15,914.60

Finding the Fourth Proportional to 27,851.52, 38,437.13 and 15,914.60

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Solution

The fourth proportional to 27,851.52, 38,437.13 and 15,914.60 is: 21,963.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,851.52 : 38,437.13 = 15,914.60 : x
  2. Step 2: Convert to fraction form
    27,851.52/38,437.13 = 15,914.60/x
  3. Step 3: Cross multiply
    27,851.52x = 38,437.13 × 15,914.60
  4. Step 4: Simplify right side
    27,851.52x = 611,711,549.10
  5. Step 5: Solve for x
    x = 611,711,549.10/27,851.52
  6. Step 6: Final answer
    x = 21,963.31

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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.