Home / 20,030.14-30,042.91-5,240.49

Finding the Fourth Proportional to 20,030.14, 30,042.91 and 5,240.49

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Solution

The fourth proportional to 20,030.14, 30,042.91 and 5,240.49 is: 7,860.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,030.14 : 30,042.91 = 5,240.49 : x
  2. Step 2: Convert to fraction form
    20,030.14/30,042.91 = 5,240.49/x
  3. Step 3: Cross multiply
    20,030.14x = 30,042.91 × 5,240.49
  4. Step 4: Simplify right side
    20,030.14x = 157,439,569.43
  5. Step 5: Solve for x
    x = 157,439,569.43/20,030.14
  6. Step 6: Final answer
    x = 7,860.13

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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.