Home / 22,579.16-31,158.85-12,507.39

Finding the Fourth Proportional to 22,579.16, 31,158.85 and 12,507.39

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Solution

The fourth proportional to 22,579.16, 31,158.85 and 12,507.39 is: 17,259.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,579.16 : 31,158.85 = 12,507.39 : x
  2. Step 2: Convert to fraction form
    22,579.16/31,158.85 = 12,507.39/x
  3. Step 3: Cross multiply
    22,579.16x = 31,158.85 × 12,507.39
  4. Step 4: Simplify right side
    22,579.16x = 389,715,904.54
  5. Step 5: Solve for x
    x = 389,715,904.54/22,579.16
  6. Step 6: Final answer
    x = 17,259.98

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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.