Home / 22,320.48-30,800.40-12,248.64

Finding the Fourth Proportional to 22,320.48, 30,800.40 and 12,248.64

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Solution

The fourth proportional to 22,320.48, 30,800.40 and 12,248.64 is: 16,902.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,320.48 : 30,800.40 = 12,248.64 : x
  2. Step 2: Convert to fraction form
    22,320.48/30,800.40 = 12,248.64/x
  3. Step 3: Cross multiply
    22,320.48x = 30,800.40 × 12,248.64
  4. Step 4: Simplify right side
    22,320.48x = 377,263,011.46
  5. Step 5: Solve for x
    x = 377,263,011.46/22,320.48
  6. Step 6: Final answer
    x = 16,902.10

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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.