Home / 39,752.17-54,859.01-21,847.63

Finding the Fourth Proportional to 39,752.17, 54,859.01 and 21,847.63

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Solution

The fourth proportional to 39,752.17, 54,859.01 and 21,847.63 is: 30,150.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,752.17 : 54,859.01 = 21,847.63 : x
  2. Step 2: Convert to fraction form
    39,752.17/54,859.01 = 21,847.63/x
  3. Step 3: Cross multiply
    39,752.17x = 54,859.01 × 21,847.63
  4. Step 4: Simplify right side
    39,752.17x = 1,198,538,969.11
  5. Step 5: Solve for x
    x = 1,198,538,969.11/39,752.17
  6. Step 6: Final answer
    x = 30,150.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.