Home / 20,750.57-31,130.45-5,958.35

Finding the Fourth Proportional to 20,750.57, 31,130.45 and 5,958.35

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Solution

The fourth proportional to 20,750.57, 31,130.45 and 5,958.35 is: 8,938.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,750.57 : 31,130.45 = 5,958.35 : x
  2. Step 2: Convert to fraction form
    20,750.57/31,130.45 = 5,958.35/x
  3. Step 3: Cross multiply
    20,750.57x = 31,130.45 × 5,958.35
  4. Step 4: Simplify right side
    20,750.57x = 185,485,931.31
  5. Step 5: Solve for x
    x = 185,485,931.31/20,750.57
  6. Step 6: Final answer
    x = 8,938.84

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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.