Home / 51,338.80-77,021.70-16,278.40

Finding the Fourth Proportional to 51,338.80, 77,021.70 and 16,278.40

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Solution

The fourth proportional to 51,338.80, 77,021.70 and 16,278.40 is: 24,421.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,338.80 : 77,021.70 = 16,278.40 : x
  2. Step 2: Convert to fraction form
    51,338.80/77,021.70 = 16,278.40/x
  3. Step 3: Cross multiply
    51,338.80x = 77,021.70 × 16,278.40
  4. Step 4: Simplify right side
    51,338.80x = 1,253,790,041.28
  5. Step 5: Solve for x
    x = 1,253,790,041.28/51,338.80
  6. Step 6: Final answer
    x = 24,421.88

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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.