Home / 22,581.09-31,155.84-13,628.43

Finding the Fourth Proportional to 22,581.09, 31,155.84 and 13,628.43

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Solution

The fourth proportional to 22,581.09, 31,155.84 and 13,628.43 is: 18,803.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,581.09 : 31,155.84 = 13,628.43 : x
  2. Step 2: Convert to fraction form
    22,581.09/31,155.84 = 13,628.43/x
  3. Step 3: Cross multiply
    22,581.09x = 31,155.84 × 13,628.43
  4. Step 4: Simplify right side
    22,581.09x = 424,605,184.53
  5. Step 5: Solve for x
    x = 424,605,184.53/22,581.09
  6. Step 6: Final answer
    x = 18,803.57

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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.