Home / 39,983.57-60,011.63-21,279.36

Finding the Fourth Proportional to 39,983.57, 60,011.63 and 21,279.36

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Solution

The fourth proportional to 39,983.57, 60,011.63 and 21,279.36 is: 31,938.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,983.57 : 60,011.63 = 21,279.36 : x
  2. Step 2: Convert to fraction form
    39,983.57/60,011.63 = 21,279.36/x
  3. Step 3: Cross multiply
    39,983.57x = 60,011.63 × 21,279.36
  4. Step 4: Simplify right side
    39,983.57x = 1,277,009,059.53
  5. Step 5: Solve for x
    x = 1,277,009,059.53/39,983.57
  6. Step 6: Final answer
    x = 31,938.34

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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.