Home / 39,554.80-54,585.65-21,649.80

Finding the Fourth Proportional to 39,554.80, 54,585.65 and 21,649.80

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Solution

The fourth proportional to 39,554.80, 54,585.65 and 21,649.80 is: 29,876.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,554.80 : 54,585.65 = 21,649.80 : x
  2. Step 2: Convert to fraction form
    39,554.80/54,585.65 = 21,649.80/x
  3. Step 3: Cross multiply
    39,554.80x = 54,585.65 × 21,649.80
  4. Step 4: Simplify right side
    39,554.80x = 1,181,768,405.37
  5. Step 5: Solve for x
    x = 1,181,768,405.37/39,554.80
  6. Step 6: Final answer
    x = 29,876.74

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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.