Home / 20,946.63-31,424.95-6,155.22

Finding the Fourth Proportional to 20,946.63, 31,424.95 and 6,155.22

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Solution

The fourth proportional to 20,946.63, 31,424.95 and 6,155.22 is: 9,234.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,946.63 : 31,424.95 = 6,155.22 : x
  2. Step 2: Convert to fraction form
    20,946.63/31,424.95 = 6,155.22/x
  3. Step 3: Cross multiply
    20,946.63x = 31,424.95 × 6,155.22
  4. Step 4: Simplify right side
    20,946.63x = 193,427,480.74
  5. Step 5: Solve for x
    x = 193,427,480.74/20,946.63
  6. Step 6: Final answer
    x = 9,234.30

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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.