Home / 22,303.04-30,778.44-12,744.20

Finding the Fourth Proportional to 22,303.04, 30,778.44 and 12,744.20

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Solution

The fourth proportional to 22,303.04, 30,778.44 and 12,744.20 is: 17,587.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,303.04 : 30,778.44 = 12,744.20 : x
  2. Step 2: Convert to fraction form
    22,303.04/30,778.44 = 12,744.20/x
  3. Step 3: Cross multiply
    22,303.04x = 30,778.44 × 12,744.20
  4. Step 4: Simplify right side
    22,303.04x = 392,246,595.05
  5. Step 5: Solve for x
    x = 392,246,595.05/22,303.04
  6. Step 6: Final answer
    x = 17,587.14

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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.