Home / 22,762.05-31,408.50-12,689.29

Finding the Fourth Proportional to 22,762.05, 31,408.50 and 12,689.29

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Solution

The fourth proportional to 22,762.05, 31,408.50 and 12,689.29 is: 17,509.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,762.05 : 31,408.50 = 12,689.29 : x
  2. Step 2: Convert to fraction form
    22,762.05/31,408.50 = 12,689.29/x
  3. Step 3: Cross multiply
    22,762.05x = 31,408.50 × 12,689.29
  4. Step 4: Simplify right side
    22,762.05x = 398,551,564.97
  5. Step 5: Solve for x
    x = 398,551,564.97/22,762.05
  6. Step 6: Final answer
    x = 17,509.48

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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.