Home / 39,977.28-55,172.16-23,215.68

Finding the Fourth Proportional to 39,977.28, 55,172.16 and 23,215.68

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Solution

The fourth proportional to 39,977.28, 55,172.16 and 23,215.68 is: 32,039.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,977.28 : 55,172.16 = 23,215.68 : x
  2. Step 2: Convert to fraction form
    39,977.28/55,172.16 = 23,215.68/x
  3. Step 3: Cross multiply
    39,977.28x = 55,172.16 × 23,215.68
  4. Step 4: Simplify right side
    39,977.28x = 1,280,859,211.47
  5. Step 5: Solve for x
    x = 1,280,859,211.47/39,977.28
  6. Step 6: Final answer
    x = 32,039.68

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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.