Home / 28,225.65-42,331.15-13,405.08

Finding the Fourth Proportional to 28,225.65, 42,331.15 and 13,405.08

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Solution

The fourth proportional to 28,225.65, 42,331.15 and 13,405.08 is: 20,104.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,225.65 : 42,331.15 = 13,405.08 : x
  2. Step 2: Convert to fraction form
    28,225.65/42,331.15 = 13,405.08/x
  3. Step 3: Cross multiply
    28,225.65x = 42,331.15 × 13,405.08
  4. Step 4: Simplify right side
    28,225.65x = 567,452,452.24
  5. Step 5: Solve for x
    x = 567,452,452.24/28,225.65
  6. Step 6: Final answer
    x = 20,104.14

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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.