Home / 20,631.90-30,925.77-9,525.66

Finding the Fourth Proportional to 20,631.90, 30,925.77 and 9,525.66

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Solution

The fourth proportional to 20,631.90, 30,925.77 and 9,525.66 is: 14,278.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,631.90 : 30,925.77 = 9,525.66 : x
  2. Step 2: Convert to fraction form
    20,631.90/30,925.77 = 9,525.66/x
  3. Step 3: Cross multiply
    20,631.90x = 30,925.77 × 9,525.66
  4. Step 4: Simplify right side
    20,631.90x = 294,588,370.26
  5. Step 5: Solve for x
    x = 294,588,370.26/20,631.90
  6. Step 6: Final answer
    x = 14,278.30

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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.