Home / 20,152.89-30,140.91-17,947.26

Finding the Fourth Proportional to 20,152.89, 30,140.91 and 17,947.26

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Solution

The fourth proportional to 20,152.89, 30,140.91 and 17,947.26 is: 26,842.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,152.89 : 30,140.91 = 17,947.26 : x
  2. Step 2: Convert to fraction form
    20,152.89/30,140.91 = 17,947.26/x
  3. Step 3: Cross multiply
    20,152.89x = 30,140.91 × 17,947.26
  4. Step 4: Simplify right side
    20,152.89x = 540,946,748.41
  5. Step 5: Solve for x
    x = 540,946,748.41/20,152.89
  6. Step 6: Final answer
    x = 26,842.14

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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.