Home / 22,990.68-31,686.30-19,795.76

Finding the Fourth Proportional to 22,990.68, 31,686.30 and 19,795.76

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Solution

The fourth proportional to 22,990.68, 31,686.30 and 19,795.76 is: 27,282.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,990.68 : 31,686.30 = 19,795.76 : x
  2. Step 2: Convert to fraction form
    22,990.68/31,686.30 = 19,795.76/x
  3. Step 3: Cross multiply
    22,990.68x = 31,686.30 × 19,795.76
  4. Step 4: Simplify right side
    22,990.68x = 627,254,390.09
  5. Step 5: Solve for x
    x = 627,254,390.09/22,990.68
  6. Step 6: Final answer
    x = 27,282.99

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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.