Home / 28,930.50-39,926.52-18,316.26

Finding the Fourth Proportional to 28,930.50, 39,926.52 and 18,316.26

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Solution

The fourth proportional to 28,930.50, 39,926.52 and 18,316.26 is: 25,277.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,930.50 : 39,926.52 = 18,316.26 : x
  2. Step 2: Convert to fraction form
    28,930.50/39,926.52 = 18,316.26/x
  3. Step 3: Cross multiply
    28,930.50x = 39,926.52 × 18,316.26
  4. Step 4: Simplify right side
    28,930.50x = 731,304,521.22
  5. Step 5: Solve for x
    x = 731,304,521.22/28,930.50
  6. Step 6: Final answer
    x = 25,277.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.