Home / 20,955.51-31,432.62-6,164.71

Finding the Fourth Proportional to 20,955.51, 31,432.62 and 6,164.71

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Solution

The fourth proportional to 20,955.51, 31,432.62 and 6,164.71 is: 9,246.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,955.51 : 31,432.62 = 6,164.71 : x
  2. Step 2: Convert to fraction form
    20,955.51/31,432.62 = 6,164.71/x
  3. Step 3: Cross multiply
    20,955.51x = 31,432.62 × 6,164.71
  4. Step 4: Simplify right side
    20,955.51x = 193,772,931.38
  5. Step 5: Solve for x
    x = 193,772,931.38/20,955.51
  6. Step 6: Final answer
    x = 9,246.87

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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.