Home / 22,578.57-31,158.09-12,506.98

Finding the Fourth Proportional to 22,578.57, 31,158.09 and 12,506.98

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Solution

The fourth proportional to 22,578.57, 31,158.09 and 12,506.98 is: 17,259.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,578.57 : 31,158.09 = 12,506.98 : x
  2. Step 2: Convert to fraction form
    22,578.57/31,158.09 = 12,506.98/x
  3. Step 3: Cross multiply
    22,578.57x = 31,158.09 × 12,506.98
  4. Step 4: Simplify right side
    22,578.57x = 389,693,608.47
  5. Step 5: Solve for x
    x = 389,693,608.47/22,578.57
  6. Step 6: Final answer
    x = 17,259.45

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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.