Home / 20,239.40-27,957.59-18,353.12

Finding the Fourth Proportional to 20,239.40, 27,957.59 and 18,353.12

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Solution

The fourth proportional to 20,239.40, 27,957.59 and 18,353.12 is: 25,351.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,239.40 : 27,957.59 = 18,353.12 : x
  2. Step 2: Convert to fraction form
    20,239.40/27,957.59 = 18,353.12/x
  3. Step 3: Cross multiply
    20,239.40x = 27,957.59 × 18,353.12
  4. Step 4: Simplify right side
    20,239.40x = 513,108,841.45
  5. Step 5: Solve for x
    x = 513,108,841.45/20,239.40
  6. Step 6: Final answer
    x = 25,351.98

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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.