Home / 31,110.50-42,931.04-16,963.22

Finding the Fourth Proportional to 31,110.50, 42,931.04 and 16,963.22

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Solution

The fourth proportional to 31,110.50, 42,931.04 and 16,963.22 is: 23,408.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,110.50 : 42,931.04 = 16,963.22 : x
  2. Step 2: Convert to fraction form
    31,110.50/42,931.04 = 16,963.22/x
  3. Step 3: Cross multiply
    31,110.50x = 42,931.04 × 16,963.22
  4. Step 4: Simplify right side
    31,110.50x = 728,248,676.35
  5. Step 5: Solve for x
    x = 728,248,676.35/31,110.50
  6. Step 6: Final answer
    x = 23,408.45

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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.