Home / 19,967.12-29,950.28-8,870.80

Finding the Fourth Proportional to 19,967.12, 29,950.28 and 8,870.80

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Solution

The fourth proportional to 19,967.12, 29,950.28 and 8,870.80 is: 13,306.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,967.12 : 29,950.28 = 8,870.80 : x
  2. Step 2: Convert to fraction form
    19,967.12/29,950.28 = 8,870.80/x
  3. Step 3: Cross multiply
    19,967.12x = 29,950.28 × 8,870.80
  4. Step 4: Simplify right side
    19,967.12x = 265,682,943.82
  5. Step 5: Solve for x
    x = 265,682,943.82/19,967.12
  6. Step 6: Final answer
    x = 13,306.02

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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.