Home / 22,763.48-31,439.76-15,196.64

Finding the Fourth Proportional to 22,763.48, 31,439.76 and 15,196.64

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Solution

The fourth proportional to 22,763.48, 31,439.76 and 15,196.64 is: 20,988.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,763.48 : 31,439.76 = 15,196.64 : x
  2. Step 2: Convert to fraction form
    22,763.48/31,439.76 = 15,196.64/x
  3. Step 3: Cross multiply
    22,763.48x = 31,439.76 × 15,196.64
  4. Step 4: Simplify right side
    22,763.48x = 477,778,714.41
  5. Step 5: Solve for x
    x = 477,778,714.41/22,763.48
  6. Step 6: Final answer
    x = 20,988.83

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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.