Home / 30,689.20-46,024.55-20,158.79

Finding the Fourth Proportional to 30,689.20, 46,024.55 and 20,158.79

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Solution

The fourth proportional to 30,689.20, 46,024.55 and 20,158.79 is: 30,232.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,689.20 : 46,024.55 = 20,158.79 : x
  2. Step 2: Convert to fraction form
    30,689.20/46,024.55 = 20,158.79/x
  3. Step 3: Cross multiply
    30,689.20x = 46,024.55 × 20,158.79
  4. Step 4: Simplify right side
    30,689.20x = 927,799,355.25
  5. Step 5: Solve for x
    x = 927,799,355.25/30,689.20
  6. Step 6: Final answer
    x = 30,232.12

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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.