Home / 39,977.68-55,158.16-22,981.04

Finding the Fourth Proportional to 39,977.68, 55,158.16 and 22,981.04

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Solution

The fourth proportional to 39,977.68, 55,158.16 and 22,981.04 is: 31,707.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,977.68 : 55,158.16 = 22,981.04 : x
  2. Step 2: Convert to fraction form
    39,977.68/55,158.16 = 22,981.04/x
  3. Step 3: Cross multiply
    39,977.68x = 55,158.16 × 22,981.04
  4. Step 4: Simplify right side
    39,977.68x = 1,267,591,881.29
  5. Step 5: Solve for x
    x = 1,267,591,881.29/39,977.68
  6. Step 6: Final answer
    x = 31,707.49

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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.