Home / 21,159.81-29,200.83-11,600.59

Finding the Fourth Proportional to 21,159.81, 29,200.83 and 11,600.59

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Solution

The fourth proportional to 21,159.81, 29,200.83 and 11,600.59 is: 16,008.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,159.81 : 29,200.83 = 11,600.59 : x
  2. Step 2: Convert to fraction form
    21,159.81/29,200.83 = 11,600.59/x
  3. Step 3: Cross multiply
    21,159.81x = 29,200.83 × 11,600.59
  4. Step 4: Simplify right side
    21,159.81x = 338,746,849.49
  5. Step 5: Solve for x
    x = 338,746,849.49/21,159.81
  6. Step 6: Final answer
    x = 16,008.98

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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.