Home / 51,518.96-71,095.20-28,857.68

Finding the Fourth Proportional to 51,518.96, 71,095.20 and 28,857.68

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Solution

The fourth proportional to 51,518.96, 71,095.20 and 28,857.68 is: 39,823.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,518.96 : 71,095.20 = 28,857.68 : x
  2. Step 2: Convert to fraction form
    51,518.96/71,095.20 = 28,857.68/x
  3. Step 3: Cross multiply
    51,518.96x = 71,095.20 × 28,857.68
  4. Step 4: Simplify right side
    51,518.96x = 2,051,642,531.14
  5. Step 5: Solve for x
    x = 2,051,642,531.14/51,518.96
  6. Step 6: Final answer
    x = 39,823.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.