Home / 28,926.57-43,394.47-8,931.36

Finding the Fourth Proportional to 28,926.57, 43,394.47 and 8,931.36

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Solution

The fourth proportional to 28,926.57, 43,394.47 and 8,931.36 is: 13,398.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,926.57 : 43,394.47 = 8,931.36 : x
  2. Step 2: Convert to fraction form
    28,926.57/43,394.47 = 8,931.36/x
  3. Step 3: Cross multiply
    28,926.57x = 43,394.47 × 8,931.36
  4. Step 4: Simplify right side
    28,926.57x = 387,571,633.58
  5. Step 5: Solve for x
    x = 387,571,633.58/28,926.57
  6. Step 6: Final answer
    x = 13,398.46

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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.