Home / 67,024.48-100,515.12-20,264.80

Finding the Fourth Proportional to 67,024.48, 100,515.12 and 20,264.80

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Solution

The fourth proportional to 67,024.48, 100,515.12 and 20,264.80 is: 30,390.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,024.48 : 100,515.12 = 20,264.80 : x
  2. Step 2: Convert to fraction form
    67,024.48/100,515.12 = 20,264.80/x
  3. Step 3: Cross multiply
    67,024.48x = 100,515.12 × 20,264.80
  4. Step 4: Simplify right side
    67,024.48x = 2,036,918,803.78
  5. Step 5: Solve for x
    x = 2,036,918,803.78/67,024.48
  6. Step 6: Final answer
    x = 30,390.67

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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.