Home / 19,822.07-29,712.95-12,431.67

Finding the Fourth Proportional to 19,822.07, 29,712.95 and 12,431.67

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Solution

The fourth proportional to 19,822.07, 29,712.95 and 12,431.67 is: 18,634.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,822.07 : 29,712.95 = 12,431.67 : x
  2. Step 2: Convert to fraction form
    19,822.07/29,712.95 = 12,431.67/x
  3. Step 3: Cross multiply
    19,822.07x = 29,712.95 × 12,431.67
  4. Step 4: Simplify right side
    19,822.07x = 369,381,526.97
  5. Step 5: Solve for x
    x = 369,381,526.97/19,822.07
  6. Step 6: Final answer
    x = 18,634.87

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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.