Home / 39,275.80-54,199.73-21,370.85

Finding the Fourth Proportional to 39,275.80, 54,199.73 and 21,370.85

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Solution

The fourth proportional to 39,275.80, 54,199.73 and 21,370.85 is: 29,491.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,275.80 : 54,199.73 = 21,370.85 : x
  2. Step 2: Convert to fraction form
    39,275.80/54,199.73 = 21,370.85/x
  3. Step 3: Cross multiply
    39,275.80x = 54,199.73 × 21,370.85
  4. Step 4: Simplify right side
    39,275.80x = 1,158,294,590.42
  5. Step 5: Solve for x
    x = 1,158,294,590.42/39,275.80
  6. Step 6: Final answer
    x = 29,491.30

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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.