Home / 38,107.13-52,587.73-21,111.40

Finding the Fourth Proportional to 38,107.13, 52,587.73 and 21,111.40

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Solution

The fourth proportional to 38,107.13, 52,587.73 and 21,111.40 is: 29,133.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,107.13 : 52,587.73 = 21,111.40 : x
  2. Step 2: Convert to fraction form
    38,107.13/52,587.73 = 21,111.40/x
  3. Step 3: Cross multiply
    38,107.13x = 52,587.73 × 21,111.40
  4. Step 4: Simplify right side
    38,107.13x = 1,110,200,695.25
  5. Step 5: Solve for x
    x = 1,110,200,695.25/38,107.13
  6. Step 6: Final answer
    x = 29,133.68

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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.