Home / 20,007.95-30,031.36-9,626.99

Finding the Fourth Proportional to 20,007.95, 30,031.36 and 9,626.99

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Solution

The fourth proportional to 20,007.95, 30,031.36 and 9,626.99 is: 14,449.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,007.95 : 30,031.36 = 9,626.99 : x
  2. Step 2: Convert to fraction form
    20,007.95/30,031.36 = 9,626.99/x
  3. Step 3: Cross multiply
    20,007.95x = 30,031.36 × 9,626.99
  4. Step 4: Simplify right side
    20,007.95x = 289,111,428.18
  5. Step 5: Solve for x
    x = 289,111,428.18/20,007.95
  6. Step 6: Final answer
    x = 14,449.83

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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.