Home / 22,376.14-30,871.38-13,875.20

Finding the Fourth Proportional to 22,376.14, 30,871.38 and 13,875.20

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Solution

The fourth proportional to 22,376.14, 30,871.38 and 13,875.20 is: 19,143.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,376.14 : 30,871.38 = 13,875.20 : x
  2. Step 2: Convert to fraction form
    22,376.14/30,871.38 = 13,875.20/x
  3. Step 3: Cross multiply
    22,376.14x = 30,871.38 × 13,875.20
  4. Step 4: Simplify right side
    22,376.14x = 428,346,417.42
  5. Step 5: Solve for x
    x = 428,346,417.42/22,376.14
  6. Step 6: Final answer
    x = 19,143.00

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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.