Home / 21,332.76-31,999.34-6,541.75

Finding the Fourth Proportional to 21,332.76, 31,999.34 and 6,541.75

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Solution

The fourth proportional to 21,332.76, 31,999.34 and 6,541.75 is: 9,812.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,332.76 : 31,999.34 = 6,541.75 : x
  2. Step 2: Convert to fraction form
    21,332.76/31,999.34 = 6,541.75/x
  3. Step 3: Cross multiply
    21,332.76x = 31,999.34 × 6,541.75
  4. Step 4: Simplify right side
    21,332.76x = 209,331,682.45
  5. Step 5: Solve for x
    x = 209,331,682.45/21,332.76
  6. Step 6: Final answer
    x = 9,812.69

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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.