Home / 28,008.39-42,013.14-8,286.93

Finding the Fourth Proportional to 28,008.39, 42,013.14 and 8,286.93

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Solution

The fourth proportional to 28,008.39, 42,013.14 and 8,286.93 is: 12,430.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,008.39 : 42,013.14 = 8,286.93 : x
  2. Step 2: Convert to fraction form
    28,008.39/42,013.14 = 8,286.93/x
  3. Step 3: Cross multiply
    28,008.39x = 42,013.14 × 8,286.93
  4. Step 4: Simplify right side
    28,008.39x = 348,159,950.26
  5. Step 5: Solve for x
    x = 348,159,950.26/28,008.39
  6. Step 6: Final answer
    x = 12,430.56

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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.