Home / 39,555.42-54,585.54-21,650.40

Finding the Fourth Proportional to 39,555.42, 54,585.54 and 21,650.40

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Solution

The fourth proportional to 39,555.42, 54,585.54 and 21,650.40 is: 29,877.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,555.42 : 54,585.54 = 21,650.40 : x
  2. Step 2: Convert to fraction form
    39,555.42/54,585.54 = 21,650.40/x
  3. Step 3: Cross multiply
    39,555.42x = 54,585.54 × 21,650.40
  4. Step 4: Simplify right side
    39,555.42x = 1,181,798,775.22
  5. Step 5: Solve for x
    x = 1,181,798,775.22/39,555.42
  6. Step 6: Final answer
    x = 29,877.04

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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.