Home / 20,945.04-31,417.48-5,150.13

Finding the Fourth Proportional to 20,945.04, 31,417.48 and 5,150.13

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Solution

The fourth proportional to 20,945.04, 31,417.48 and 5,150.13 is: 7,725.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,945.04 : 31,417.48 = 5,150.13 : x
  2. Step 2: Convert to fraction form
    20,945.04/31,417.48 = 5,150.13/x
  3. Step 3: Cross multiply
    20,945.04x = 31,417.48 × 5,150.13
  4. Step 4: Simplify right side
    20,945.04x = 161,804,106.27
  5. Step 5: Solve for x
    x = 161,804,106.27/20,945.04
  6. Step 6: Final answer
    x = 7,725.18

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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.