Home / 28,542.69-42,814.31-12,748.52

Finding the Fourth Proportional to 28,542.69, 42,814.31 and 12,748.52

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Solution

The fourth proportional to 28,542.69, 42,814.31 and 12,748.52 is: 19,122.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,542.69 : 42,814.31 = 12,748.52 : x
  2. Step 2: Convert to fraction form
    28,542.69/42,814.31 = 12,748.52/x
  3. Step 3: Cross multiply
    28,542.69x = 42,814.31 × 12,748.52
  4. Step 4: Simplify right side
    28,542.69x = 545,818,809.51
  5. Step 5: Solve for x
    x = 545,818,809.51/28,542.69
  6. Step 6: Final answer
    x = 19,122.89

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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.