Home / 28,609.76-39,476.28-18,013.52

Finding the Fourth Proportional to 28,609.76, 39,476.28 and 18,013.52

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Solution

The fourth proportional to 28,609.76, 39,476.28 and 18,013.52 is: 24,855.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,609.76 : 39,476.28 = 18,013.52 : x
  2. Step 2: Convert to fraction form
    28,609.76/39,476.28 = 18,013.52/x
  3. Step 3: Cross multiply
    28,609.76x = 39,476.28 × 18,013.52
  4. Step 4: Simplify right side
    28,609.76x = 711,106,759.31
  5. Step 5: Solve for x
    x = 711,106,759.31/28,609.76
  6. Step 6: Final answer
    x = 24,855.39

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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.