Home / 19,622.11-27,088.55-15,135.79

Finding the Fourth Proportional to 19,622.11, 27,088.55 and 15,135.79

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Solution

The fourth proportional to 19,622.11, 27,088.55 and 15,135.79 is: 20,895.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,622.11 : 27,088.55 = 15,135.79 : x
  2. Step 2: Convert to fraction form
    19,622.11/27,088.55 = 15,135.79/x
  3. Step 3: Cross multiply
    19,622.11x = 27,088.55 × 15,135.79
  4. Step 4: Simplify right side
    19,622.11x = 410,006,528.53
  5. Step 5: Solve for x
    x = 410,006,528.53/19,622.11
  6. Step 6: Final answer
    x = 20,895.13

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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.