Home / 21,212.92-29,263.80-14,507.92

Finding the Fourth Proportional to 21,212.92, 29,263.80 and 14,507.92

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Solution

The fourth proportional to 21,212.92, 29,263.80 and 14,507.92 is: 20,014.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,212.92 : 29,263.80 = 14,507.92 : x
  2. Step 2: Convert to fraction form
    21,212.92/29,263.80 = 14,507.92/x
  3. Step 3: Cross multiply
    21,212.92x = 29,263.80 × 14,507.92
  4. Step 4: Simplify right side
    21,212.92x = 424,556,869.30
  5. Step 5: Solve for x
    x = 424,556,869.30/21,212.92
  6. Step 6: Final answer
    x = 20,014.07

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1.5x scale

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.