Home / 39,293.59-54,226.37-21,389.80

Finding the Fourth Proportional to 39,293.59, 54,226.37 and 21,389.80

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Solution

The fourth proportional to 39,293.59, 54,226.37 and 21,389.80 is: 29,518.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,293.59 : 54,226.37 = 21,389.80 : x
  2. Step 2: Convert to fraction form
    39,293.59/54,226.37 = 21,389.80/x
  3. Step 3: Cross multiply
    39,293.59x = 54,226.37 × 21,389.80
  4. Step 4: Simplify right side
    39,293.59x = 1,159,891,209.03
  5. Step 5: Solve for x
    x = 1,159,891,209.03/39,293.59
  6. Step 6: Final answer
    x = 29,518.59

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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.