Home / 27,687.93-38,208.02-15,750.15

Finding the Fourth Proportional to 27,687.93, 38,208.02 and 15,750.15

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Solution

The fourth proportional to 27,687.93, 38,208.02 and 15,750.15 is: 21,734.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,687.93 : 38,208.02 = 15,750.15 : x
  2. Step 2: Convert to fraction form
    27,687.93/38,208.02 = 15,750.15/x
  3. Step 3: Cross multiply
    27,687.93x = 38,208.02 × 15,750.15
  4. Step 4: Simplify right side
    27,687.93x = 601,781,967.45
  5. Step 5: Solve for x
    x = 601,781,967.45/27,687.93
  6. Step 6: Final answer
    x = 21,734.45

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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.