Home / 21,244.13-31,868.01-10,159.68

Finding the Fourth Proportional to 21,244.13, 31,868.01 and 10,159.68

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Solution

The fourth proportional to 21,244.13, 31,868.01 and 10,159.68 is: 15,240.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,244.13 : 31,868.01 = 10,159.68 : x
  2. Step 2: Convert to fraction form
    21,244.13/31,868.01 = 10,159.68/x
  3. Step 3: Cross multiply
    21,244.13x = 31,868.01 × 10,159.68
  4. Step 4: Simplify right side
    21,244.13x = 323,768,783.84
  5. Step 5: Solve for x
    x = 323,768,783.84/21,244.13
  6. Step 6: Final answer
    x = 15,240.39

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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.