Home / 38,840.40-58,217.40-21,322.80

Finding the Fourth Proportional to 38,840.40, 58,217.40 and 21,322.80

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Solution

The fourth proportional to 38,840.40, 58,217.40 and 21,322.80 is: 31,960.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,840.40 : 58,217.40 = 21,322.80 : x
  2. Step 2: Convert to fraction form
    38,840.40/58,217.40 = 21,322.80/x
  3. Step 3: Cross multiply
    38,840.40x = 58,217.40 × 21,322.80
  4. Step 4: Simplify right side
    38,840.40x = 1,241,357,976.72
  5. Step 5: Solve for x
    x = 1,241,357,976.72/38,840.40
  6. Step 6: Final answer
    x = 31,960.48

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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.