Home / 29,212.77-40,313.63-15,784.02

Finding the Fourth Proportional to 29,212.77, 40,313.63 and 15,784.02

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Solution

The fourth proportional to 29,212.77, 40,313.63 and 15,784.02 is: 21,781.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,212.77 : 40,313.63 = 15,784.02 : x
  2. Step 2: Convert to fraction form
    29,212.77/40,313.63 = 15,784.02/x
  3. Step 3: Cross multiply
    29,212.77x = 40,313.63 × 15,784.02
  4. Step 4: Simplify right side
    29,212.77x = 636,311,142.19
  5. Step 5: Solve for x
    x = 636,311,142.19/29,212.77
  6. Step 6: Final answer
    x = 21,781.95

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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.