Home / 18,240.39-25,170.55-10,281.53

Finding the Fourth Proportional to 18,240.39, 25,170.55 and 10,281.53

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Solution

The fourth proportional to 18,240.39, 25,170.55 and 10,281.53 is: 14,187.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,240.39 : 25,170.55 = 10,281.53 : x
  2. Step 2: Convert to fraction form
    18,240.39/25,170.55 = 10,281.53/x
  3. Step 3: Cross multiply
    18,240.39x = 25,170.55 × 10,281.53
  4. Step 4: Simplify right side
    18,240.39x = 258,791,802.16
  5. Step 5: Solve for x
    x = 258,791,802.16/18,240.39
  6. Step 6: Final answer
    x = 14,187.84

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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.