Home / 20,223.47-30,341.52-18,130.30

Finding the Fourth Proportional to 20,223.47, 30,341.52 and 18,130.30

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Solution

The fourth proportional to 20,223.47, 30,341.52 and 18,130.30 is: 27,201.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,223.47 : 30,341.52 = 18,130.30 : x
  2. Step 2: Convert to fraction form
    20,223.47/30,341.52 = 18,130.30/x
  3. Step 3: Cross multiply
    20,223.47x = 30,341.52 × 18,130.30
  4. Step 4: Simplify right side
    20,223.47x = 550,100,784.20
  5. Step 5: Solve for x
    x = 550,100,784.20/20,223.47
  6. Step 6: Final answer
    x = 27,201.10

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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.