Home / 21,187.32-31,776.48-8,035.08

Finding the Fourth Proportional to 21,187.32, 31,776.48 and 8,035.08

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Solution

The fourth proportional to 21,187.32, 31,776.48 and 8,035.08 is: 12,050.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,187.32 : 31,776.48 = 8,035.08 : x
  2. Step 2: Convert to fraction form
    21,187.32/31,776.48 = 8,035.08/x
  3. Step 3: Cross multiply
    21,187.32x = 31,776.48 × 8,035.08
  4. Step 4: Simplify right side
    21,187.32x = 255,326,558.92
  5. Step 5: Solve for x
    x = 255,326,558.92/21,187.32
  6. Step 6: Final answer
    x = 12,050.91

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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.