Home / 22,121.02-30,526.77-12,691.06

Finding the Fourth Proportional to 22,121.02, 30,526.77 and 12,691.06

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Solution

The fourth proportional to 22,121.02, 30,526.77 and 12,691.06 is: 17,513.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,121.02 : 30,526.77 = 12,691.06 : x
  2. Step 2: Convert to fraction form
    22,121.02/30,526.77 = 12,691.06/x
  3. Step 3: Cross multiply
    22,121.02x = 30,526.77 × 12,691.06
  4. Step 4: Simplify right side
    22,121.02x = 387,417,069.68
  5. Step 5: Solve for x
    x = 387,417,069.68/22,121.02
  6. Step 6: Final answer
    x = 17,513.53

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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.