Home / 39,943.80-59,964.30-20,212.20

Finding the Fourth Proportional to 39,943.80, 59,964.30 and 20,212.20

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Solution

The fourth proportional to 39,943.80, 59,964.30 and 20,212.20 is: 30,342.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,943.80 : 59,964.30 = 20,212.20 : x
  2. Step 2: Convert to fraction form
    39,943.80/59,964.30 = 20,212.20/x
  3. Step 3: Cross multiply
    39,943.80x = 59,964.30 × 20,212.20
  4. Step 4: Simplify right side
    39,943.80x = 1,212,010,424.46
  5. Step 5: Solve for x
    x = 1,212,010,424.46/39,943.80
  6. Step 6: Final answer
    x = 30,342.89

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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.