Home / 28,180.31-38,888.30-16,244.15

Finding the Fourth Proportional to 28,180.31, 38,888.30 and 16,244.15

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Solution

The fourth proportional to 28,180.31, 38,888.30 and 16,244.15 is: 22,416.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,180.31 : 38,888.30 = 16,244.15 : x
  2. Step 2: Convert to fraction form
    28,180.31/38,888.30 = 16,244.15/x
  3. Step 3: Cross multiply
    28,180.31x = 38,888.30 × 16,244.15
  4. Step 4: Simplify right side
    28,180.31x = 631,707,224.61
  5. Step 5: Solve for x
    x = 631,707,224.61/28,180.31
  6. Step 6: Final answer
    x = 22,416.62

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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.