Home / 22,579.02-31,159.29-12,507.61

Finding the Fourth Proportional to 22,579.02, 31,159.29 and 12,507.61

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Solution

The fourth proportional to 22,579.02, 31,159.29 and 12,507.61 is: 17,260.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,579.02 : 31,159.29 = 12,507.61 : x
  2. Step 2: Convert to fraction form
    22,579.02/31,159.29 = 12,507.61/x
  3. Step 3: Cross multiply
    22,579.02x = 31,159.29 × 12,507.61
  4. Step 4: Simplify right side
    22,579.02x = 389,728,247.20
  5. Step 5: Solve for x
    x = 389,728,247.20/22,579.02
  6. Step 6: Final answer
    x = 17,260.64

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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.