Home / 28,098.36-42,147.53-15,612.40

Finding the Fourth Proportional to 28,098.36, 42,147.53 and 15,612.40

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Solution

The fourth proportional to 28,098.36, 42,147.53 and 15,612.40 is: 23,418.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,098.36 : 42,147.53 = 15,612.40 : x
  2. Step 2: Convert to fraction form
    28,098.36/42,147.53 = 15,612.40/x
  3. Step 3: Cross multiply
    28,098.36x = 42,147.53 × 15,612.40
  4. Step 4: Simplify right side
    28,098.36x = 658,024,097.37
  5. Step 5: Solve for x
    x = 658,024,097.37/28,098.36
  6. Step 6: Final answer
    x = 23,418.59

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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.