Home / 20,026.71-30,032.78-8,931.33

Finding the Fourth Proportional to 20,026.71, 30,032.78 and 8,931.33

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Solution

The fourth proportional to 20,026.71, 30,032.78 and 8,931.33 is: 13,393.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,026.71 : 30,032.78 = 8,931.33 : x
  2. Step 2: Convert to fraction form
    20,026.71/30,032.78 = 8,931.33/x
  3. Step 3: Cross multiply
    20,026.71x = 30,032.78 × 8,931.33
  4. Step 4: Simplify right side
    20,026.71x = 268,232,624.34
  5. Step 5: Solve for x
    x = 268,232,624.34/20,026.71
  6. Step 6: Final answer
    x = 13,393.74

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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.