Home / 22,140.17-30,551.14-13,185.92

Finding the Fourth Proportional to 22,140.17, 30,551.14 and 13,185.92

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Solution

The fourth proportional to 22,140.17, 30,551.14 and 13,185.92 is: 18,195.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,140.17 : 30,551.14 = 13,185.92 : x
  2. Step 2: Convert to fraction form
    22,140.17/30,551.14 = 13,185.92/x
  3. Step 3: Cross multiply
    22,140.17x = 30,551.14 × 13,185.92
  4. Step 4: Simplify right side
    22,140.17x = 402,844,980.81
  5. Step 5: Solve for x
    x = 402,844,980.81/22,140.17
  6. Step 6: Final answer
    x = 18,195.21

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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.