Home / 67,928.40-101,897.10-18,007.80

Finding the Fourth Proportional to 67,928.40, 101,897.10 and 18,007.80

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Solution

The fourth proportional to 67,928.40, 101,897.10 and 18,007.80 is: 27,012.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,928.40 : 101,897.10 = 18,007.80 : x
  2. Step 2: Convert to fraction form
    67,928.40/101,897.10 = 18,007.80/x
  3. Step 3: Cross multiply
    67,928.40x = 101,897.10 × 18,007.80
  4. Step 4: Simplify right side
    67,928.40x = 1,834,942,597.38
  5. Step 5: Solve for x
    x = 1,834,942,597.38/67,928.40
  6. Step 6: Final answer
    x = 27,012.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.