Home / 18,431.50-25,435.65-10,048.18

Finding the Fourth Proportional to 18,431.50, 25,435.65 and 10,048.18

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Solution

The fourth proportional to 18,431.50, 25,435.65 and 10,048.18 is: 13,866.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,431.50 : 25,435.65 = 10,048.18 : x
  2. Step 2: Convert to fraction form
    18,431.50/25,435.65 = 10,048.18/x
  3. Step 3: Cross multiply
    18,431.50x = 25,435.65 × 10,048.18
  4. Step 4: Simplify right side
    18,431.50x = 255,581,989.62
  5. Step 5: Solve for x
    x = 255,581,989.62/18,431.50
  6. Step 6: Final answer
    x = 13,866.59

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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.