Home / 31,586.62-43,585.80-18,840.50

Finding the Fourth Proportional to 31,586.62, 43,585.80 and 18,840.50

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Solution

The fourth proportional to 31,586.62, 43,585.80 and 18,840.50 is: 25,997.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,586.62 : 43,585.80 = 18,840.50 : x
  2. Step 2: Convert to fraction form
    31,586.62/43,585.80 = 18,840.50/x
  3. Step 3: Cross multiply
    31,586.62x = 43,585.80 × 18,840.50
  4. Step 4: Simplify right side
    31,586.62x = 821,178,264.90
  5. Step 5: Solve for x
    x = 821,178,264.90/31,586.62
  6. Step 6: Final answer
    x = 25,997.66

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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.