Home / 26,461.43-39,689.70-8,931.41

Finding the Fourth Proportional to 26,461.43, 39,689.70 and 8,931.41

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Solution

The fourth proportional to 26,461.43, 39,689.70 and 8,931.41 is: 13,396.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,461.43 : 39,689.70 = 8,931.41 : x
  2. Step 2: Convert to fraction form
    26,461.43/39,689.70 = 8,931.41/x
  3. Step 3: Cross multiply
    26,461.43x = 39,689.70 × 8,931.41
  4. Step 4: Simplify right side
    26,461.43x = 354,484,785.03
  5. Step 5: Solve for x
    x = 354,484,785.03/26,461.43
  6. Step 6: Final answer
    x = 13,396.28

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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.