Home / 22,139.48-30,539.04-14,178.80

Finding the Fourth Proportional to 22,139.48, 30,539.04 and 14,178.80

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Solution

The fourth proportional to 22,139.48, 30,539.04 and 14,178.80 is: 19,558.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,139.48 : 30,539.04 = 14,178.80 : x
  2. Step 2: Convert to fraction form
    22,139.48/30,539.04 = 14,178.80/x
  3. Step 3: Cross multiply
    22,139.48x = 30,539.04 × 14,178.80
  4. Step 4: Simplify right side
    22,139.48x = 433,006,940.35
  5. Step 5: Solve for x
    x = 433,006,940.35/22,139.48
  6. Step 6: Final answer
    x = 19,558.14

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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.