Home / 36,281.76-54,421.16-9,985.79

Finding the Fourth Proportional to 36,281.76, 54,421.16 and 9,985.79

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Solution

The fourth proportional to 36,281.76, 54,421.16 and 9,985.79 is: 14,978.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,281.76 : 54,421.16 = 9,985.79 : x
  2. Step 2: Convert to fraction form
    36,281.76/54,421.16 = 9,985.79/x
  3. Step 3: Cross multiply
    36,281.76x = 54,421.16 × 9,985.79
  4. Step 4: Simplify right side
    36,281.76x = 543,437,953.28
  5. Step 5: Solve for x
    x = 543,437,953.28/36,281.76
  6. Step 6: Final answer
    x = 14,978.27

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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.