Home / 19,421.16-29,137.68-8,182.32

Finding the Fourth Proportional to 19,421.16, 29,137.68 and 8,182.32

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Solution

The fourth proportional to 19,421.16, 29,137.68 and 8,182.32 is: 12,275.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,421.16 : 29,137.68 = 8,182.32 : x
  2. Step 2: Convert to fraction form
    19,421.16/29,137.68 = 8,182.32/x
  3. Step 3: Cross multiply
    19,421.16x = 29,137.68 × 8,182.32
  4. Step 4: Simplify right side
    19,421.16x = 238,413,821.82
  5. Step 5: Solve for x
    x = 238,413,821.82/19,421.16
  6. Step 6: Final answer
    x = 12,275.98

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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.