Home / 36,281.10-54,421.65-9,985.80

Finding the Fourth Proportional to 36,281.10, 54,421.65 and 9,985.80

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Solution

The fourth proportional to 36,281.10, 54,421.65 and 9,985.80 is: 14,978.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,281.10 : 54,421.65 = 9,985.80 : x
  2. Step 2: Convert to fraction form
    36,281.10/54,421.65 = 9,985.80/x
  3. Step 3: Cross multiply
    36,281.10x = 54,421.65 × 9,985.80
  4. Step 4: Simplify right side
    36,281.10x = 543,443,712.57
  5. Step 5: Solve for x
    x = 543,443,712.57/36,281.10
  6. Step 6: Final answer
    x = 14,978.70

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1.5x scale

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.