Home / 39,897.53-55,058.58-21,992.84

Finding the Fourth Proportional to 39,897.53, 55,058.58 and 21,992.84

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Solution

The fourth proportional to 39,897.53, 55,058.58 and 21,992.84 is: 30,350.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,897.53 : 55,058.58 = 21,992.84 : x
  2. Step 2: Convert to fraction form
    39,897.53/55,058.58 = 21,992.84/x
  3. Step 3: Cross multiply
    39,897.53x = 55,058.58 × 21,992.84
  4. Step 4: Simplify right side
    39,897.53x = 1,210,894,265.27
  5. Step 5: Solve for x
    x = 1,210,894,265.27/39,897.53
  6. Step 6: Final answer
    x = 30,350.10

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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.