Home / 39,595.96-54,641.94-21,690.76

Finding the Fourth Proportional to 39,595.96, 54,641.94 and 21,690.76

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Solution

The fourth proportional to 39,595.96, 54,641.94 and 21,690.76 is: 29,932.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,595.96 : 54,641.94 = 21,690.76 : x
  2. Step 2: Convert to fraction form
    39,595.96/54,641.94 = 21,690.76/x
  3. Step 3: Cross multiply
    39,595.96x = 54,641.94 × 21,690.76
  4. Step 4: Simplify right side
    39,595.96x = 1,185,225,206.47
  5. Step 5: Solve for x
    x = 1,185,225,206.47/39,595.96
  6. Step 6: Final answer
    x = 29,932.98

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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.