Home / 28,331.50-42,478.07-15,860.13

Finding the Fourth Proportional to 28,331.50, 42,478.07 and 15,860.13

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Solution

The fourth proportional to 28,331.50, 42,478.07 and 15,860.13 is: 23,779.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,331.50 : 42,478.07 = 15,860.13 : x
  2. Step 2: Convert to fraction form
    28,331.50/42,478.07 = 15,860.13/x
  3. Step 3: Cross multiply
    28,331.50x = 42,478.07 × 15,860.13
  4. Step 4: Simplify right side
    28,331.50x = 673,707,712.35
  5. Step 5: Solve for x
    x = 673,707,712.35/28,331.50
  6. Step 6: Final answer
    x = 23,779.46

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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.