Home / 39,764.93-54,875.70-21,859.98

Finding the Fourth Proportional to 39,764.93, 54,875.70 and 21,859.98

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Solution

The fourth proportional to 39,764.93, 54,875.70 and 21,859.98 is: 30,166.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,764.93 : 54,875.70 = 21,859.98 : x
  2. Step 2: Convert to fraction form
    39,764.93/54,875.70 = 21,859.98/x
  3. Step 3: Cross multiply
    39,764.93x = 54,875.70 × 21,859.98
  4. Step 4: Simplify right side
    39,764.93x = 1,199,581,595.19
  5. Step 5: Solve for x
    x = 1,199,581,595.19/39,764.93
  6. Step 6: Final answer
    x = 30,166.82

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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.