Home / 28,258.43-38,999.75-18,058.86

Finding the Fourth Proportional to 28,258.43, 38,999.75 and 18,058.86

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Solution

The fourth proportional to 28,258.43, 38,999.75 and 18,058.86 is: 24,923.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,258.43 : 38,999.75 = 18,058.86 : x
  2. Step 2: Convert to fraction form
    28,258.43/38,999.75 = 18,058.86/x
  3. Step 3: Cross multiply
    28,258.43x = 38,999.75 × 18,058.86
  4. Step 4: Simplify right side
    28,258.43x = 704,290,934.99
  5. Step 5: Solve for x
    x = 704,290,934.99/28,258.43
  6. Step 6: Final answer
    x = 24,923.22

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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.