Home / 22,639.77-31,243.01-12,568.05

Finding the Fourth Proportional to 22,639.77, 31,243.01 and 12,568.05

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Solution

The fourth proportional to 22,639.77, 31,243.01 and 12,568.05 is: 17,343.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,639.77 : 31,243.01 = 12,568.05 : x
  2. Step 2: Convert to fraction form
    22,639.77/31,243.01 = 12,568.05/x
  3. Step 3: Cross multiply
    22,639.77x = 31,243.01 × 12,568.05
  4. Step 4: Simplify right side
    22,639.77x = 392,663,648.99
  5. Step 5: Solve for x
    x = 392,663,648.99/22,639.77
  6. Step 6: Final answer
    x = 17,343.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.