Home / 28,287.59-42,431.48-9,567.77

Finding the Fourth Proportional to 28,287.59, 42,431.48 and 9,567.77

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Solution

The fourth proportional to 28,287.59, 42,431.48 and 9,567.77 is: 14,351.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,287.59 : 42,431.48 = 9,567.77 : x
  2. Step 2: Convert to fraction form
    28,287.59/42,431.48 = 9,567.77/x
  3. Step 3: Cross multiply
    28,287.59x = 42,431.48 × 9,567.77
  4. Step 4: Simplify right side
    28,287.59x = 405,974,381.40
  5. Step 5: Solve for x
    x = 405,974,381.40/28,287.59
  6. Step 6: Final answer
    x = 14,351.68

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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.