Home / 21,335.13-29,437.09-12,834.52

Finding the Fourth Proportional to 21,335.13, 29,437.09 and 12,834.52

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Solution

The fourth proportional to 21,335.13, 29,437.09 and 12,834.52 is: 17,708.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,335.13 : 29,437.09 = 12,834.52 : x
  2. Step 2: Convert to fraction form
    21,335.13/29,437.09 = 12,834.52/x
  3. Step 3: Cross multiply
    21,335.13x = 29,437.09 × 12,834.52
  4. Step 4: Simplify right side
    21,335.13x = 377,810,814.67
  5. Step 5: Solve for x
    x = 377,810,814.67/21,335.13
  6. Step 6: Final answer
    x = 17,708.39

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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.