Home / 19,570.77-29,360.63-8,479.31

Finding the Fourth Proportional to 19,570.77, 29,360.63 and 8,479.31

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Solution

The fourth proportional to 19,570.77, 29,360.63 and 8,479.31 is: 12,720.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,570.77 : 29,360.63 = 8,479.31 : x
  2. Step 2: Convert to fraction form
    19,570.77/29,360.63 = 8,479.31/x
  3. Step 3: Cross multiply
    19,570.77x = 29,360.63 × 8,479.31
  4. Step 4: Simplify right side
    19,570.77x = 248,957,757.96
  5. Step 5: Solve for x
    x = 248,957,757.96/19,570.77
  6. Step 6: Final answer
    x = 12,720.90

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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.