Home / 39,672.12-59,401.53-20,913.15

Finding the Fourth Proportional to 39,672.12, 59,401.53 and 20,913.15

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Solution

The fourth proportional to 39,672.12, 59,401.53 and 20,913.15 is: 31,313.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,672.12 : 59,401.53 = 20,913.15 : x
  2. Step 2: Convert to fraction form
    39,672.12/59,401.53 = 20,913.15/x
  3. Step 3: Cross multiply
    39,672.12x = 59,401.53 × 20,913.15
  4. Step 4: Simplify right side
    39,672.12x = 1,242,273,107.12
  5. Step 5: Solve for x
    x = 1,242,273,107.12/39,672.12
  6. Step 6: Final answer
    x = 31,313.50

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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.