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Finding the Fourth Proportional to 20,008.95, 30,032.86 and 9,627.99

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Solution

The fourth proportional to 20,008.95, 30,032.86 and 9,627.99 is: 14,451.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,008.95 : 30,032.86 = 9,627.99 : x
  2. Step 2: Convert to fraction form
    20,008.95/30,032.86 = 9,627.99/x
  3. Step 3: Cross multiply
    20,008.95x = 30,032.86 × 9,627.99
  4. Step 4: Simplify right side
    20,008.95x = 289,156,075.75
  5. Step 5: Solve for x
    x = 289,156,075.75/20,008.95
  6. Step 6: Final answer
    x = 14,451.34

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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.