Home / 39,981.99-55,175.28-22,077.12

Finding the Fourth Proportional to 39,981.99, 55,175.28 and 22,077.12

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Solution

The fourth proportional to 39,981.99, 55,175.28 and 22,077.12 is: 30,466.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,981.99 : 55,175.28 = 22,077.12 : x
  2. Step 2: Convert to fraction form
    39,981.99/55,175.28 = 22,077.12/x
  3. Step 3: Cross multiply
    39,981.99x = 55,175.28 × 22,077.12
  4. Step 4: Simplify right side
    39,981.99x = 1,218,111,277.59
  5. Step 5: Solve for x
    x = 1,218,111,277.59/39,981.99
  6. Step 6: Final answer
    x = 30,466.50

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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.