Home / 20,887.12-31,329.47-6,095.71

Finding the Fourth Proportional to 20,887.12, 31,329.47 and 6,095.71

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Solution

The fourth proportional to 20,887.12, 31,329.47 and 6,095.71 is: 9,143.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,887.12 : 31,329.47 = 6,095.71 : x
  2. Step 2: Convert to fraction form
    20,887.12/31,329.47 = 6,095.71/x
  3. Step 3: Cross multiply
    20,887.12x = 31,329.47 × 6,095.71
  4. Step 4: Simplify right side
    20,887.12x = 190,975,333.10
  5. Step 5: Solve for x
    x = 190,975,333.10/20,887.12
  6. Step 6: Final answer
    x = 9,143.21

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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.