Home / 52,021.81-71,789.79-28,148.28

Finding the Fourth Proportional to 52,021.81, 71,789.79 and 28,148.28

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Solution

The fourth proportional to 52,021.81, 71,789.79 and 28,148.28 is: 38,844.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,021.81 : 71,789.79 = 28,148.28 : x
  2. Step 2: Convert to fraction form
    52,021.81/71,789.79 = 28,148.28/x
  3. Step 3: Cross multiply
    52,021.81x = 71,789.79 × 28,148.28
  4. Step 4: Simplify right side
    52,021.81x = 2,020,759,110.06
  5. Step 5: Solve for x
    x = 2,020,759,110.06/52,021.81
  6. Step 6: Final answer
    x = 38,844.46

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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.