Home / 39,216.64-54,116.75-21,311.52

Finding the Fourth Proportional to 39,216.64, 54,116.75 and 21,311.52

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Solution

The fourth proportional to 39,216.64, 54,116.75 and 21,311.52 is: 29,408.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,216.64 : 54,116.75 = 21,311.52 : x
  2. Step 2: Convert to fraction form
    39,216.64/54,116.75 = 21,311.52/x
  3. Step 3: Cross multiply
    39,216.64x = 54,116.75 × 21,311.52
  4. Step 4: Simplify right side
    39,216.64x = 1,153,310,253.24
  5. Step 5: Solve for x
    x = 1,153,310,253.24/39,216.64
  6. Step 6: Final answer
    x = 29,408.70

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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.