Home / 39,462.14-54,456.86-21,557.22

Finding the Fourth Proportional to 39,462.14, 54,456.86 and 21,557.22

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Solution

The fourth proportional to 39,462.14, 54,456.86 and 21,557.22 is: 29,748.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,462.14 : 54,456.86 = 21,557.22 : x
  2. Step 2: Convert to fraction form
    39,462.14/54,456.86 = 21,557.22/x
  3. Step 3: Cross multiply
    39,462.14x = 54,456.86 × 21,557.22
  4. Step 4: Simplify right side
    39,462.14x = 1,173,938,403.74
  5. Step 5: Solve for x
    x = 1,173,938,403.74/39,462.14
  6. Step 6: Final answer
    x = 29,748.48

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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.