Home / 30,778.89-46,126.20-16,720.53

Finding the Fourth Proportional to 30,778.89, 46,126.20 and 16,720.53

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Solution

The fourth proportional to 30,778.89, 46,126.20 and 16,720.53 is: 25,057.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,778.89 : 46,126.20 = 16,720.53 : x
  2. Step 2: Convert to fraction form
    30,778.89/46,126.20 = 16,720.53/x
  3. Step 3: Cross multiply
    30,778.89x = 46,126.20 × 16,720.53
  4. Step 4: Simplify right side
    30,778.89x = 771,254,510.89
  5. Step 5: Solve for x
    x = 771,254,510.89/30,778.89
  6. Step 6: Final answer
    x = 25,057.91

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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.