Home / 47,612.88-71,420.67-18,025.20

Finding the Fourth Proportional to 47,612.88, 71,420.67 and 18,025.20

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Solution

The fourth proportional to 47,612.88, 71,420.67 and 18,025.20 is: 27,038.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,612.88 : 71,420.67 = 18,025.20 : x
  2. Step 2: Convert to fraction form
    47,612.88/71,420.67 = 18,025.20/x
  3. Step 3: Cross multiply
    47,612.88x = 71,420.67 × 18,025.20
  4. Step 4: Simplify right side
    47,612.88x = 1,287,371,860.88
  5. Step 5: Solve for x
    x = 1,287,371,860.88/47,612.88
  6. Step 6: Final answer
    x = 27,038.31

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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.