Home / 28,326.79-42,459.00-11,677.69

Finding the Fourth Proportional to 28,326.79, 42,459.00 and 11,677.69

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Solution

The fourth proportional to 28,326.79, 42,459.00 and 11,677.69 is: 17,503.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,326.79 : 42,459.00 = 11,677.69 : x
  2. Step 2: Convert to fraction form
    28,326.79/42,459.00 = 11,677.69/x
  3. Step 3: Cross multiply
    28,326.79x = 42,459.00 × 11,677.69
  4. Step 4: Simplify right side
    28,326.79x = 495,822,889.77
  5. Step 5: Solve for x
    x = 495,822,889.77/28,326.79
  6. Step 6: Final answer
    x = 17,503.68

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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.