Home / 21,826.81-32,712.83-9,332.15

Finding the Fourth Proportional to 21,826.81, 32,712.83 and 9,332.15

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Solution

The fourth proportional to 21,826.81, 32,712.83 and 9,332.15 is: 13,986.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,826.81 : 32,712.83 = 9,332.15 : x
  2. Step 2: Convert to fraction form
    21,826.81/32,712.83 = 9,332.15/x
  3. Step 3: Cross multiply
    21,826.81x = 32,712.83 × 9,332.15
  4. Step 4: Simplify right side
    21,826.81x = 305,281,036.48
  5. Step 5: Solve for x
    x = 305,281,036.48/21,826.81
  6. Step 6: Final answer
    x = 13,986.52

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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.