Home / 22,433.43-30,955.65-12,870.75

Finding the Fourth Proportional to 22,433.43, 30,955.65 and 12,870.75

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Solution

The fourth proportional to 22,433.43, 30,955.65 and 12,870.75 is: 17,760.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,433.43 : 30,955.65 = 12,870.75 : x
  2. Step 2: Convert to fraction form
    22,433.43/30,955.65 = 12,870.75/x
  3. Step 3: Cross multiply
    22,433.43x = 30,955.65 × 12,870.75
  4. Step 4: Simplify right side
    22,433.43x = 398,422,432.24
  5. Step 5: Solve for x
    x = 398,422,432.24/22,433.43
  6. Step 6: Final answer
    x = 17,760.21

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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.