Home / 27,990.83-38,573.69-17,901.70

Finding the Fourth Proportional to 27,990.83, 38,573.69 and 17,901.70

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Solution

The fourth proportional to 27,990.83, 38,573.69 and 17,901.70 is: 24,670.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,990.83 : 38,573.69 = 17,901.70 : x
  2. Step 2: Convert to fraction form
    27,990.83/38,573.69 = 17,901.70/x
  3. Step 3: Cross multiply
    27,990.83x = 38,573.69 × 17,901.70
  4. Step 4: Simplify right side
    27,990.83x = 690,534,440.33
  5. Step 5: Solve for x
    x = 690,534,440.33/27,990.83
  6. Step 6: Final answer
    x = 24,670.02

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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.