Home / 20,960.04-31,417.38-10,572.60

Finding the Fourth Proportional to 20,960.04, 31,417.38 and 10,572.60

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Solution

The fourth proportional to 20,960.04, 31,417.38 and 10,572.60 is: 15,847.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,960.04 : 31,417.38 = 10,572.60 : x
  2. Step 2: Convert to fraction form
    20,960.04/31,417.38 = 10,572.60/x
  3. Step 3: Cross multiply
    20,960.04x = 31,417.38 × 10,572.60
  4. Step 4: Simplify right side
    20,960.04x = 332,163,391.79
  5. Step 5: Solve for x
    x = 332,163,391.79/20,960.04
  6. Step 6: Final answer
    x = 15,847.46

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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.