Home / 20,143.74-30,225.51-9,058.26

Finding the Fourth Proportional to 20,143.74, 30,225.51 and 9,058.26

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Solution

The fourth proportional to 20,143.74, 30,225.51 and 9,058.26 is: 13,591.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,143.74 : 30,225.51 = 9,058.26 : x
  2. Step 2: Convert to fraction form
    20,143.74/30,225.51 = 9,058.26/x
  3. Step 3: Cross multiply
    20,143.74x = 30,225.51 × 9,058.26
  4. Step 4: Simplify right side
    20,143.74x = 273,790,528.21
  5. Step 5: Solve for x
    x = 273,790,528.21/20,143.74
  6. Step 6: Final answer
    x = 13,591.84

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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.