Home / 15,553.16-21,612.46-15,393.32

Finding the Fourth Proportional to 15,553.16, 21,612.46 and 15,393.32

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Solution

The fourth proportional to 15,553.16, 21,612.46 and 15,393.32 is: 21,390.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,553.16 : 21,612.46 = 15,393.32 : x
  2. Step 2: Convert to fraction form
    15,553.16/21,612.46 = 15,393.32/x
  3. Step 3: Cross multiply
    15,553.16x = 21,612.46 × 15,393.32
  4. Step 4: Simplify right side
    15,553.16x = 332,687,512.77
  5. Step 5: Solve for x
    x = 332,687,512.77/15,553.16
  6. Step 6: Final answer
    x = 21,390.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.