Home / 27,962.95-38,588.85-15,387.70

Finding the Fourth Proportional to 27,962.95, 38,588.85 and 15,387.70

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Solution

The fourth proportional to 27,962.95, 38,588.85 and 15,387.70 is: 21,235.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,962.95 : 38,588.85 = 15,387.70 : x
  2. Step 2: Convert to fraction form
    27,962.95/38,588.85 = 15,387.70/x
  3. Step 3: Cross multiply
    27,962.95x = 38,588.85 × 15,387.70
  4. Step 4: Simplify right side
    27,962.95x = 593,793,647.15
  5. Step 5: Solve for x
    x = 593,793,647.15/27,962.95
  6. Step 6: Final answer
    x = 21,235.01

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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.