Home / 28,567.85-42,851.78-9,853.25

Finding the Fourth Proportional to 28,567.85, 42,851.78 and 9,853.25

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Solution

The fourth proportional to 28,567.85, 42,851.78 and 9,853.25 is: 14,779.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,567.85 : 42,851.78 = 9,853.25 : x
  2. Step 2: Convert to fraction form
    28,567.85/42,851.78 = 9,853.25/x
  3. Step 3: Cross multiply
    28,567.85x = 42,851.78 × 9,853.25
  4. Step 4: Simplify right side
    28,567.85x = 422,229,037.76
  5. Step 5: Solve for x
    x = 422,229,037.76/28,567.85
  6. Step 6: Final answer
    x = 14,779.87

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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.