Home / 39,913.83-55,080-22,008.51

Finding the Fourth Proportional to 39,913.83, 55,080 and 22,008.51

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Solution

The fourth proportional to 39,913.83, 55,080 and 22,008.51 is: 30,371.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,913.83 : 55,080 = 22,008.51 : x
  2. Step 2: Convert to fraction form
    39,913.83/55,080 = 22,008.51/x
  3. Step 3: Cross multiply
    39,913.83x = 55,080 × 22,008.51
  4. Step 4: Simplify right side
    39,913.83x = 1,212,228,730.80
  5. Step 5: Solve for x
    x = 1,212,228,730.80/39,913.83
  6. Step 6: Final answer
    x = 30,371.15

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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.