Home / 39,591.96-54,636.42-21,686.76

Finding the Fourth Proportional to 39,591.96, 54,636.42 and 21,686.76

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Solution

The fourth proportional to 39,591.96, 54,636.42 and 21,686.76 is: 29,927.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,591.96 : 54,636.42 = 21,686.76 : x
  2. Step 2: Convert to fraction form
    39,591.96/54,636.42 = 21,686.76/x
  3. Step 3: Cross multiply
    39,591.96x = 54,636.42 × 21,686.76
  4. Step 4: Simplify right side
    39,591.96x = 1,184,886,927.80
  5. Step 5: Solve for x
    x = 1,184,886,927.80/39,591.96
  6. Step 6: Final answer
    x = 29,927.46

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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.