Home / 39,893.46-55,050.49-21,988.62

Finding the Fourth Proportional to 39,893.46, 55,050.49 and 21,988.62

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Solution

The fourth proportional to 39,893.46, 55,050.49 and 21,988.62 is: 30,342.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,893.46 : 55,050.49 = 21,988.62 : x
  2. Step 2: Convert to fraction form
    39,893.46/55,050.49 = 21,988.62/x
  3. Step 3: Cross multiply
    39,893.46x = 55,050.49 × 21,988.62
  4. Step 4: Simplify right side
    39,893.46x = 1,210,484,305.42
  5. Step 5: Solve for x
    x = 1,210,484,305.42/39,893.46
  6. Step 6: Final answer
    x = 30,342.93

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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.