Home / 39,216.77-54,119.10-21,311.74

Finding the Fourth Proportional to 39,216.77, 54,119.10 and 21,311.74

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Solution

The fourth proportional to 39,216.77, 54,119.10 and 21,311.74 is: 29,410.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,216.77 : 54,119.10 = 21,311.74 : x
  2. Step 2: Convert to fraction form
    39,216.77/54,119.10 = 21,311.74/x
  3. Step 3: Cross multiply
    39,216.77x = 54,119.10 × 21,311.74
  4. Step 4: Simplify right side
    39,216.77x = 1,153,371,811.08
  5. Step 5: Solve for x
    x = 1,153,371,811.08/39,216.77
  6. Step 6: Final answer
    x = 29,410.17

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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.