Home / 28,152.98-38,851.56-15,407.27

Finding the Fourth Proportional to 28,152.98, 38,851.56 and 15,407.27

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Solution

The fourth proportional to 28,152.98, 38,851.56 and 15,407.27 is: 21,262.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,152.98 : 38,851.56 = 15,407.27 : x
  2. Step 2: Convert to fraction form
    28,152.98/38,851.56 = 15,407.27/x
  3. Step 3: Cross multiply
    28,152.98x = 38,851.56 × 15,407.27
  4. Step 4: Simplify right side
    28,152.98x = 598,596,280.58
  5. Step 5: Solve for x
    x = 598,596,280.58/28,152.98
  6. Step 6: Final answer
    x = 21,262.27

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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.