Home / 39,322.88-54,263.66-21,417.78

Finding the Fourth Proportional to 39,322.88, 54,263.66 and 21,417.78

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Solution

The fourth proportional to 39,322.88, 54,263.66 and 21,417.78 is: 29,555.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,322.88 : 54,263.66 = 21,417.78 : x
  2. Step 2: Convert to fraction form
    39,322.88/54,263.66 = 21,417.78/x
  3. Step 3: Cross multiply
    39,322.88x = 54,263.66 × 21,417.78
  4. Step 4: Simplify right side
    39,322.88x = 1,162,207,131.87
  5. Step 5: Solve for x
    x = 1,162,207,131.87/39,322.88
  6. Step 6: Final answer
    x = 29,555.49

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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.