Home / 18,240.81-25,172.28-10,283.10

Finding the Fourth Proportional to 18,240.81, 25,172.28 and 10,283.10

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Solution

The fourth proportional to 18,240.81, 25,172.28 and 10,283.10 is: 14,190.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,240.81 : 25,172.28 = 10,283.10 : x
  2. Step 2: Convert to fraction form
    18,240.81/25,172.28 = 10,283.10/x
  3. Step 3: Cross multiply
    18,240.81x = 25,172.28 × 10,283.10
  4. Step 4: Simplify right side
    18,240.81x = 258,849,072.47
  5. Step 5: Solve for x
    x = 258,849,072.47/18,240.81
  6. Step 6: Final answer
    x = 14,190.66

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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.