Home / 14,402.63-21,579.36-10,221.95

Finding the Fourth Proportional to 14,402.63, 21,579.36 and 10,221.95

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Solution

The fourth proportional to 14,402.63, 21,579.36 and 10,221.95 is: 15,315.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,402.63 : 21,579.36 = 10,221.95 : x
  2. Step 2: Convert to fraction form
    14,402.63/21,579.36 = 10,221.95/x
  3. Step 3: Cross multiply
    14,402.63x = 21,579.36 × 10,221.95
  4. Step 4: Simplify right side
    14,402.63x = 220,583,031.06
  5. Step 5: Solve for x
    x = 220,583,031.06/14,402.63
  6. Step 6: Final answer
    x = 15,315.47

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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.