Home / 20,393,721.08-30,590,906-11,353,280.12

Finding the Fourth Proportional to 20,393,721.08, 30,590,906 and 11,353,280.12

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Solution

The fourth proportional to 20,393,721.08, 30,590,906 and 11,353,280.12 is: 17,030,100.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,393,721.08 : 30,590,906 = 11,353,280.12 : x
  2. Step 2: Convert to fraction form
    20,393,721.08/30,590,906 = 11,353,280.12/x
  3. Step 3: Cross multiply
    20,393,721.08x = 30,590,906 × 11,353,280.12
  4. Step 4: Simplify right side
    20,393,721.08x = 347,307,124,942,588.69
  5. Step 5: Solve for x
    x = 347,307,124,942,588.69/20,393,721.08
  6. Step 6: Final answer
    x = 17,030,100.76

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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.