Home / 43,658.42-65,432.82-18,669.07

Finding the Fourth Proportional to 43,658.42, 65,432.82 and 18,669.07

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Solution

The fourth proportional to 43,658.42, 65,432.82 and 18,669.07 is: 27,980.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,658.42 : 65,432.82 = 18,669.07 : x
  2. Step 2: Convert to fraction form
    43,658.42/65,432.82 = 18,669.07/x
  3. Step 3: Cross multiply
    43,658.42x = 65,432.82 × 18,669.07
  4. Step 4: Simplify right side
    43,658.42x = 1,221,569,733.30
  5. Step 5: Solve for x
    x = 1,221,569,733.30/43,658.42
  6. Step 6: Final answer
    x = 27,980.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.