Home / 27,868.02-38,458.53-15,932.48

Finding the Fourth Proportional to 27,868.02, 38,458.53 and 15,932.48

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Solution

The fourth proportional to 27,868.02, 38,458.53 and 15,932.48 is: 21,987.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,868.02 : 38,458.53 = 15,932.48 : x
  2. Step 2: Convert to fraction form
    27,868.02/38,458.53 = 15,932.48/x
  3. Step 3: Cross multiply
    27,868.02x = 38,458.53 × 15,932.48
  4. Step 4: Simplify right side
    27,868.02x = 612,739,567.76
  5. Step 5: Solve for x
    x = 612,739,567.76/27,868.02
  6. Step 6: Final answer
    x = 21,987.19

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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.