Home / 21,054.24-31,564.80-10,518.83

Finding the Fourth Proportional to 21,054.24, 31,564.80 and 10,518.83

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Solution

The fourth proportional to 21,054.24, 31,564.80 and 10,518.83 is: 15,769.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,054.24 : 31,564.80 = 10,518.83 : x
  2. Step 2: Convert to fraction form
    21,054.24/31,564.80 = 10,518.83/x
  3. Step 3: Cross multiply
    21,054.24x = 31,564.80 × 10,518.83
  4. Step 4: Simplify right side
    21,054.24x = 332,024,607.36
  5. Step 5: Solve for x
    x = 332,024,607.36/21,054.24
  6. Step 6: Final answer
    x = 15,769.96

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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.