Home / 22,578.56-31,158.80-12,506.84

Finding the Fourth Proportional to 22,578.56, 31,158.80 and 12,506.84

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Solution

The fourth proportional to 22,578.56, 31,158.80 and 12,506.84 is: 17,259.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,578.56 : 31,158.80 = 12,506.84 : x
  2. Step 2: Convert to fraction form
    22,578.56/31,158.80 = 12,506.84/x
  3. Step 3: Cross multiply
    22,578.56x = 31,158.80 × 12,506.84
  4. Step 4: Simplify right side
    22,578.56x = 389,698,126.19
  5. Step 5: Solve for x
    x = 389,698,126.19/22,578.56
  6. Step 6: Final answer
    x = 17,259.65

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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.