Home / 39,216.48-54,117.28-21,311.08

Finding the Fourth Proportional to 39,216.48, 54,117.28 and 21,311.08

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Solution

The fourth proportional to 39,216.48, 54,117.28 and 21,311.08 is: 29,408.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,216.48 : 54,117.28 = 21,311.08 : x
  2. Step 2: Convert to fraction form
    39,216.48/54,117.28 = 21,311.08/x
  3. Step 3: Cross multiply
    39,216.48x = 54,117.28 × 21,311.08
  4. Step 4: Simplify right side
    39,216.48x = 1,153,297,683.46
  5. Step 5: Solve for x
    x = 1,153,297,683.46/39,216.48
  6. Step 6: Final answer
    x = 29,408.50

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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.