Home / 39,555.23-54,583.91-21,650.57

Finding the Fourth Proportional to 39,555.23, 54,583.91 and 21,650.57

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Solution

The fourth proportional to 39,555.23, 54,583.91 and 21,650.57 is: 29,876.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,555.23 : 54,583.91 = 21,650.57 : x
  2. Step 2: Convert to fraction form
    39,555.23/54,583.91 = 21,650.57/x
  3. Step 3: Cross multiply
    39,555.23x = 54,583.91 × 21,650.57
  4. Step 4: Simplify right side
    39,555.23x = 1,181,772,656.08
  5. Step 5: Solve for x
    x = 1,181,772,656.08/39,555.23
  6. Step 6: Final answer
    x = 29,876.52

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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.