Home / 28,359.48-42,537.50-12,559.90

Finding the Fourth Proportional to 28,359.48, 42,537.50 and 12,559.90

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Solution

The fourth proportional to 28,359.48, 42,537.50 and 12,559.90 is: 18,839.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,359.48 : 42,537.50 = 12,559.90 : x
  2. Step 2: Convert to fraction form
    28,359.48/42,537.50 = 12,559.90/x
  3. Step 3: Cross multiply
    28,359.48x = 42,537.50 × 12,559.90
  4. Step 4: Simplify right side
    28,359.48x = 534,266,746.25
  5. Step 5: Solve for x
    x = 534,266,746.25/28,359.48
  6. Step 6: Final answer
    x = 18,839.09

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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.