Home / 39,938.22-55,117.80-22,036.68

Finding the Fourth Proportional to 39,938.22, 55,117.80 and 22,036.68

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Solution

The fourth proportional to 39,938.22, 55,117.80 and 22,036.68 is: 30,412.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,938.22 : 55,117.80 = 22,036.68 : x
  2. Step 2: Convert to fraction form
    39,938.22/55,117.80 = 22,036.68/x
  3. Step 3: Cross multiply
    39,938.22x = 55,117.80 × 22,036.68
  4. Step 4: Simplify right side
    39,938.22x = 1,214,613,320.90
  5. Step 5: Solve for x
    x = 1,214,613,320.90/39,938.22
  6. Step 6: Final answer
    x = 30,412.30

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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.