Home / 22,281.12-30,748.32-13,333.68

Finding the Fourth Proportional to 22,281.12, 30,748.32 and 13,333.68

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Solution

The fourth proportional to 22,281.12, 30,748.32 and 13,333.68 is: 18,400.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,281.12 : 30,748.32 = 13,333.68 : x
  2. Step 2: Convert to fraction form
    22,281.12/30,748.32 = 13,333.68/x
  3. Step 3: Cross multiply
    22,281.12x = 30,748.32 × 13,333.68
  4. Step 4: Simplify right side
    22,281.12x = 409,988,259.42
  5. Step 5: Solve for x
    x = 409,988,259.42/22,281.12
  6. Step 6: Final answer
    x = 18,400.70

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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.