Home / 39,833.34-54,971.60-21,930.01

Finding the Fourth Proportional to 39,833.34, 54,971.60 and 21,930.01

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Solution

The fourth proportional to 39,833.34, 54,971.60 and 21,930.01 is: 30,264.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,833.34 : 54,971.60 = 21,930.01 : x
  2. Step 2: Convert to fraction form
    39,833.34/54,971.60 = 21,930.01/x
  3. Step 3: Cross multiply
    39,833.34x = 54,971.60 × 21,930.01
  4. Step 4: Simplify right side
    39,833.34x = 1,205,527,490.64
  5. Step 5: Solve for x
    x = 1,205,527,490.64/39,833.34
  6. Step 6: Final answer
    x = 30,264.29

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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.