Home / 28,335.50-42,505.68-13,556.24

Finding the Fourth Proportional to 28,335.50, 42,505.68 and 13,556.24

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Solution

The fourth proportional to 28,335.50, 42,505.68 and 13,556.24 is: 20,335.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,335.50 : 42,505.68 = 13,556.24 : x
  2. Step 2: Convert to fraction form
    28,335.50/42,505.68 = 13,556.24/x
  3. Step 3: Cross multiply
    28,335.50x = 42,505.68 × 13,556.24
  4. Step 4: Simplify right side
    28,335.50x = 576,217,199.44
  5. Step 5: Solve for x
    x = 576,217,199.44/28,335.50
  6. Step 6: Final answer
    x = 20,335.52

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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.