Home / 22,423.80-30,931.35-14,359.20

Finding the Fourth Proportional to 22,423.80, 30,931.35 and 14,359.20

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Solution

The fourth proportional to 22,423.80, 30,931.35 and 14,359.20 is: 19,807.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,423.80 : 30,931.35 = 14,359.20 : x
  2. Step 2: Convert to fraction form
    22,423.80/30,931.35 = 14,359.20/x
  3. Step 3: Cross multiply
    22,423.80x = 30,931.35 × 14,359.20
  4. Step 4: Simplify right side
    22,423.80x = 444,149,440.92
  5. Step 5: Solve for x
    x = 444,149,440.92/22,423.80
  6. Step 6: Final answer
    x = 19,807.06

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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.