Home / 28,934.83-43,405.36-9,208.78

Finding the Fourth Proportional to 28,934.83, 43,405.36 and 9,208.78

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Solution

The fourth proportional to 28,934.83, 43,405.36 and 9,208.78 is: 13,814.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,934.83 : 43,405.36 = 9,208.78 : x
  2. Step 2: Convert to fraction form
    28,934.83/43,405.36 = 9,208.78/x
  3. Step 3: Cross multiply
    28,934.83x = 43,405.36 × 9,208.78
  4. Step 4: Simplify right side
    28,934.83x = 399,710,279.53
  5. Step 5: Solve for x
    x = 399,710,279.53/28,934.83
  6. Step 6: Final answer
    x = 13,814.16

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1.5x scale

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.