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Finding the Fourth Proportional to 20,030.93, 30,038.09 and 5,985.93

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Solution

The fourth proportional to 20,030.93, 30,038.09 and 5,985.93 is: 8,976.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,030.93 : 30,038.09 = 5,985.93 : x
  2. Step 2: Convert to fraction form
    20,030.93/30,038.09 = 5,985.93/x
  3. Step 3: Cross multiply
    20,030.93x = 30,038.09 × 5,985.93
  4. Step 4: Simplify right side
    20,030.93x = 179,805,874.14
  5. Step 5: Solve for x
    x = 179,805,874.14/20,030.93
  6. Step 6: Final answer
    x = 8,976.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.