Home / 18,403.80-25,397.26-10,020.12

Finding the Fourth Proportional to 18,403.80, 25,397.26 and 10,020.12

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Solution

The fourth proportional to 18,403.80, 25,397.26 and 10,020.12 is: 13,827.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,403.80 : 25,397.26 = 10,020.12 : x
  2. Step 2: Convert to fraction form
    18,403.80/25,397.26 = 10,020.12/x
  3. Step 3: Cross multiply
    18,403.80x = 25,397.26 × 10,020.12
  4. Step 4: Simplify right side
    18,403.80x = 254,483,592.87
  5. Step 5: Solve for x
    x = 254,483,592.87/18,403.80
  6. Step 6: Final answer
    x = 13,827.77

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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.