Home / 22,455.28-30,970.08-19,760.72

Finding the Fourth Proportional to 22,455.28, 30,970.08 and 19,760.72

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Solution

The fourth proportional to 22,455.28, 30,970.08 and 19,760.72 is: 27,253.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,455.28 : 30,970.08 = 19,760.72 : x
  2. Step 2: Convert to fraction form
    22,455.28/30,970.08 = 19,760.72/x
  3. Step 3: Cross multiply
    22,455.28x = 30,970.08 × 19,760.72
  4. Step 4: Simplify right side
    22,455.28x = 611,991,079.26
  5. Step 5: Solve for x
    x = 611,991,079.26/22,455.28
  6. Step 6: Final answer
    x = 27,253.77

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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.