Home / 21,293.61-31,952.69-9,606.81

Finding the Fourth Proportional to 21,293.61, 31,952.69 and 9,606.81

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Solution

The fourth proportional to 21,293.61, 31,952.69 and 9,606.81 is: 14,415.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,293.61 : 31,952.69 = 9,606.81 : x
  2. Step 2: Convert to fraction form
    21,293.61/31,952.69 = 9,606.81/x
  3. Step 3: Cross multiply
    21,293.61x = 31,952.69 × 9,606.81
  4. Step 4: Simplify right side
    21,293.61x = 306,963,421.82
  5. Step 5: Solve for x
    x = 306,963,421.82/21,293.61
  6. Step 6: Final answer
    x = 14,415.75

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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.