Home / 31,529.19-47,297.12-12,806.42

Finding the Fourth Proportional to 31,529.19, 47,297.12 and 12,806.42

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Solution

The fourth proportional to 31,529.19, 47,297.12 and 12,806.42 is: 19,210.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,529.19 : 47,297.12 = 12,806.42 : x
  2. Step 2: Convert to fraction form
    31,529.19/47,297.12 = 12,806.42/x
  3. Step 3: Cross multiply
    31,529.19x = 47,297.12 × 12,806.42
  4. Step 4: Simplify right side
    31,529.19x = 605,706,929.85
  5. Step 5: Solve for x
    x = 605,706,929.85/31,529.19
  6. Step 6: Final answer
    x = 19,210.99

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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.