Home / 20,925.71-31,389.74-6,695.43

Finding the Fourth Proportional to 20,925.71, 31,389.74 and 6,695.43

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Solution

The fourth proportional to 20,925.71, 31,389.74 and 6,695.43 is: 10,043.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,925.71 : 31,389.74 = 6,695.43 : x
  2. Step 2: Convert to fraction form
    20,925.71/31,389.74 = 6,695.43/x
  3. Step 3: Cross multiply
    20,925.71x = 31,389.74 × 6,695.43
  4. Step 4: Simplify right side
    20,925.71x = 210,167,806.89
  5. Step 5: Solve for x
    x = 210,167,806.89/20,925.71
  6. Step 6: Final answer
    x = 10,043.52

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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.