Home / 21,062.54-31,574.28-7,923.62

Finding the Fourth Proportional to 21,062.54, 31,574.28 and 7,923.62

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Solution

The fourth proportional to 21,062.54, 31,574.28 and 7,923.62 is: 11,878.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,062.54 : 31,574.28 = 7,923.62 : x
  2. Step 2: Convert to fraction form
    21,062.54/31,574.28 = 7,923.62/x
  3. Step 3: Cross multiply
    21,062.54x = 31,574.28 × 7,923.62
  4. Step 4: Simplify right side
    21,062.54x = 250,182,596.49
  5. Step 5: Solve for x
    x = 250,182,596.49/21,062.54
  6. Step 6: Final answer
    x = 11,878.08

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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.