Home / 20,250.90-30,376.35-15,002.10

Finding the Fourth Proportional to 20,250.90, 30,376.35 and 15,002.10

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Solution

The fourth proportional to 20,250.90, 30,376.35 and 15,002.10 is: 22,503.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,250.90 : 30,376.35 = 15,002.10 : x
  2. Step 2: Convert to fraction form
    20,250.90/30,376.35 = 15,002.10/x
  3. Step 3: Cross multiply
    20,250.90x = 30,376.35 × 15,002.10
  4. Step 4: Simplify right side
    20,250.90x = 455,709,040.34
  5. Step 5: Solve for x
    x = 455,709,040.34/20,250.90
  6. Step 6: Final answer
    x = 22,503.15

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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.