Home / 21,031.07-31,541.20-6,236.62

Finding the Fourth Proportional to 21,031.07, 31,541.20 and 6,236.62

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Solution

The fourth proportional to 21,031.07, 31,541.20 and 6,236.62 is: 9,353.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,031.07 : 31,541.20 = 6,236.62 : x
  2. Step 2: Convert to fraction form
    21,031.07/31,541.20 = 6,236.62/x
  3. Step 3: Cross multiply
    21,031.07x = 31,541.20 × 6,236.62
  4. Step 4: Simplify right side
    21,031.07x = 196,710,384.30
  5. Step 5: Solve for x
    x = 196,710,384.30/21,031.07
  6. Step 6: Final answer
    x = 9,353.32

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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.