Home / 22,699.75-31,325.51-12,491.41

Finding the Fourth Proportional to 22,699.75, 31,325.51 and 12,491.41

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Solution

The fourth proportional to 22,699.75, 31,325.51 and 12,491.41 is: 17,238.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,699.75 : 31,325.51 = 12,491.41 : x
  2. Step 2: Convert to fraction form
    22,699.75/31,325.51 = 12,491.41/x
  3. Step 3: Cross multiply
    22,699.75x = 31,325.51 × 12,491.41
  4. Step 4: Simplify right side
    22,699.75x = 391,299,569.78
  5. Step 5: Solve for x
    x = 391,299,569.78/22,699.75
  6. Step 6: Final answer
    x = 17,238.06

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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.