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Finding the Fourth Proportional to 39,959.40, 59,960.70 and 17,776.20

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Solution

The fourth proportional to 39,959.40, 59,960.70 and 17,776.20 is: 26,673.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,959.40 : 59,960.70 = 17,776.20 : x
  2. Step 2: Convert to fraction form
    39,959.40/59,960.70 = 17,776.20/x
  3. Step 3: Cross multiply
    39,959.40x = 59,960.70 × 17,776.20
  4. Step 4: Simplify right side
    39,959.40x = 1,065,873,395.34
  5. Step 5: Solve for x
    x = 1,065,873,395.34/39,959.40
  6. Step 6: Final answer
    x = 26,673.91

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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.