Home / 20,887.74-31,332.93-6,849.21

Finding the Fourth Proportional to 20,887.74, 31,332.93 and 6,849.21

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Solution

The fourth proportional to 20,887.74, 31,332.93 and 6,849.21 is: 10,274.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,887.74 : 31,332.93 = 6,849.21 : x
  2. Step 2: Convert to fraction form
    20,887.74/31,332.93 = 6,849.21/x
  3. Step 3: Cross multiply
    20,887.74x = 31,332.93 × 6,849.21
  4. Step 4: Simplify right side
    20,887.74x = 214,605,817.49
  5. Step 5: Solve for x
    x = 214,605,817.49/20,887.74
  6. Step 6: Final answer
    x = 10,274.25

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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.