Home / 22,266.40-30,715.32-15,203.20

Finding the Fourth Proportional to 22,266.40, 30,715.32 and 15,203.20

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Solution

The fourth proportional to 22,266.40, 30,715.32 and 15,203.20 is: 20,972.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,266.40 : 30,715.32 = 15,203.20 : x
  2. Step 2: Convert to fraction form
    22,266.40/30,715.32 = 15,203.20/x
  3. Step 3: Cross multiply
    22,266.40x = 30,715.32 × 15,203.20
  4. Step 4: Simplify right side
    22,266.40x = 466,971,153.02
  5. Step 5: Solve for x
    x = 466,971,153.02/22,266.40
  6. Step 6: Final answer
    x = 20,972.01

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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.