Home / 28,434.42-42,633.36-11,805.93

Finding the Fourth Proportional to 28,434.42, 42,633.36 and 11,805.93

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Solution

The fourth proportional to 28,434.42, 42,633.36 and 11,805.93 is: 17,701.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,434.42 : 42,633.36 = 11,805.93 : x
  2. Step 2: Convert to fraction form
    28,434.42/42,633.36 = 11,805.93/x
  3. Step 3: Cross multiply
    28,434.42x = 42,633.36 × 11,805.93
  4. Step 4: Simplify right side
    28,434.42x = 503,326,463.82
  5. Step 5: Solve for x
    x = 503,326,463.82/28,434.42
  6. Step 6: Final answer
    x = 17,701.31

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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.