Home / 18,954.28-28,456.05-14,574.81

Finding the Fourth Proportional to 18,954.28, 28,456.05 and 14,574.81

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Solution

The fourth proportional to 18,954.28, 28,456.05 and 14,574.81 is: 21,881.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,954.28 : 28,456.05 = 14,574.81 : x
  2. Step 2: Convert to fraction form
    18,954.28/28,456.05 = 14,574.81/x
  3. Step 3: Cross multiply
    18,954.28x = 28,456.05 × 14,574.81
  4. Step 4: Simplify right side
    18,954.28x = 414,741,576.76
  5. Step 5: Solve for x
    x = 414,741,576.76/18,954.28
  6. Step 6: Final answer
    x = 21,881.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.