Home / 22,501.66-31,052.35-12,429.90

Finding the Fourth Proportional to 22,501.66, 31,052.35 and 12,429.90

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Solution

The fourth proportional to 22,501.66, 31,052.35 and 12,429.90 is: 17,153.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,501.66 : 31,052.35 = 12,429.90 : x
  2. Step 2: Convert to fraction form
    22,501.66/31,052.35 = 12,429.90/x
  3. Step 3: Cross multiply
    22,501.66x = 31,052.35 × 12,429.90
  4. Step 4: Simplify right side
    22,501.66x = 385,977,605.27
  5. Step 5: Solve for x
    x = 385,977,605.27/22,501.66
  6. Step 6: Final answer
    x = 17,153.29

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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.