Home / 39,557.18-54,588.44-21,407.48

Finding the Fourth Proportional to 39,557.18, 54,588.44 and 21,407.48

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Solution

The fourth proportional to 39,557.18, 54,588.44 and 21,407.48 is: 29,542.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,557.18 : 54,588.44 = 21,407.48 : x
  2. Step 2: Convert to fraction form
    39,557.18/54,588.44 = 21,407.48/x
  3. Step 3: Cross multiply
    39,557.18x = 54,588.44 × 21,407.48
  4. Step 4: Simplify right side
    39,557.18x = 1,168,600,993.72
  5. Step 5: Solve for x
    x = 1,168,600,993.72/39,557.18
  6. Step 6: Final answer
    x = 29,542.07

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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.