Home / 39,677.92-59,554-20,971.84

Finding the Fourth Proportional to 39,677.92, 59,554 and 20,971.84

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Solution

The fourth proportional to 39,677.92, 59,554 and 20,971.84 is: 31,477.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,677.92 : 59,554 = 20,971.84 : x
  2. Step 2: Convert to fraction form
    39,677.92/59,554 = 20,971.84/x
  3. Step 3: Cross multiply
    39,677.92x = 59,554 × 20,971.84
  4. Step 4: Simplify right side
    39,677.92x = 1,248,956,959.36
  5. Step 5: Solve for x
    x = 1,248,956,959.36/39,677.92
  6. Step 6: Final answer
    x = 31,477.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.