Home / 28,051.88-42,073.74-8,326.76

Finding the Fourth Proportional to 28,051.88, 42,073.74 and 8,326.76

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Solution

The fourth proportional to 28,051.88, 42,073.74 and 8,326.76 is: 12,488.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,051.88 : 42,073.74 = 8,326.76 : x
  2. Step 2: Convert to fraction form
    28,051.88/42,073.74 = 8,326.76/x
  3. Step 3: Cross multiply
    28,051.88x = 42,073.74 × 8,326.76
  4. Step 4: Simplify right side
    28,051.88x = 350,337,935.28
  5. Step 5: Solve for x
    x = 350,337,935.28/28,051.88
  6. Step 6: Final answer
    x = 12,488.93

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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.