Home / 20,229.12-27,937.80-18,030.24

Finding the Fourth Proportional to 20,229.12, 27,937.80 and 18,030.24

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Solution

The fourth proportional to 20,229.12, 27,937.80 and 18,030.24 is: 24,901.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,229.12 : 27,937.80 = 18,030.24 : x
  2. Step 2: Convert to fraction form
    20,229.12/27,937.80 = 18,030.24/x
  3. Step 3: Cross multiply
    20,229.12x = 27,937.80 × 18,030.24
  4. Step 4: Simplify right side
    20,229.12x = 503,725,239.07
  5. Step 5: Solve for x
    x = 503,725,239.07/20,229.12
  6. Step 6: Final answer
    x = 24,901.00

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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.