Home / 28,001.75-38,589.23-20,030.13

Finding the Fourth Proportional to 28,001.75, 38,589.23 and 20,030.13

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Solution

The fourth proportional to 28,001.75, 38,589.23 and 20,030.13 is: 27,603.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,001.75 : 38,589.23 = 20,030.13 : x
  2. Step 2: Convert to fraction form
    28,001.75/38,589.23 = 20,030.13/x
  3. Step 3: Cross multiply
    28,001.75x = 38,589.23 × 20,030.13
  4. Step 4: Simplify right side
    28,001.75x = 772,947,193.35
  5. Step 5: Solve for x
    x = 772,947,193.35/28,001.75
  6. Step 6: Final answer
    x = 27,603.54

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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.