Home / 39,673.16-54,749.50-21,767.84

Finding the Fourth Proportional to 39,673.16, 54,749.50 and 21,767.84

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Solution

The fourth proportional to 39,673.16, 54,749.50 and 21,767.84 is: 30,039.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,673.16 : 54,749.50 = 21,767.84 : x
  2. Step 2: Convert to fraction form
    39,673.16/54,749.50 = 21,767.84/x
  3. Step 3: Cross multiply
    39,673.16x = 54,749.50 × 21,767.84
  4. Step 4: Simplify right side
    39,673.16x = 1,191,778,356.08
  5. Step 5: Solve for x
    x = 1,191,778,356.08/39,673.16
  6. Step 6: Final answer
    x = 30,039.92

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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.