Home / 21,463.51-29,619.52-12,031.87

Finding the Fourth Proportional to 21,463.51, 29,619.52 and 12,031.87

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Solution

The fourth proportional to 21,463.51, 29,619.52 and 12,031.87 is: 16,603.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,463.51 : 29,619.52 = 12,031.87 : x
  2. Step 2: Convert to fraction form
    21,463.51/29,619.52 = 12,031.87/x
  3. Step 3: Cross multiply
    21,463.51x = 29,619.52 × 12,031.87
  4. Step 4: Simplify right side
    21,463.51x = 356,378,214.10
  5. Step 5: Solve for x
    x = 356,378,214.10/21,463.51
  6. Step 6: Final answer
    x = 16,603.91

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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.