Home / 28,152.88-38,851.46-15,407.19

Finding the Fourth Proportional to 28,152.88, 38,851.46 and 15,407.19

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Solution

The fourth proportional to 28,152.88, 38,851.46 and 15,407.19 is: 21,262.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,152.88 : 38,851.46 = 15,407.19 : x
  2. Step 2: Convert to fraction form
    28,152.88/38,851.46 = 15,407.19/x
  3. Step 3: Cross multiply
    28,152.88x = 38,851.46 × 15,407.19
  4. Step 4: Simplify right side
    28,152.88x = 598,591,748.96
  5. Step 5: Solve for x
    x = 598,591,748.96/28,152.88
  6. Step 6: Final answer
    x = 21,262.19

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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.