Home / 28,926.09-43,387.29-9,218.79

Finding the Fourth Proportional to 28,926.09, 43,387.29 and 9,218.79

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Solution

The fourth proportional to 28,926.09, 43,387.29 and 9,218.79 is: 13,827.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,926.09 : 43,387.29 = 9,218.79 : x
  2. Step 2: Convert to fraction form
    28,926.09/43,387.29 = 9,218.79/x
  3. Step 3: Cross multiply
    28,926.09x = 43,387.29 × 9,218.79
  4. Step 4: Simplify right side
    28,926.09x = 399,978,315.18
  5. Step 5: Solve for x
    x = 399,978,315.18/28,926.09
  6. Step 6: Final answer
    x = 13,827.60

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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.