Home / 19,881.24-29,821.78-10,028.80

Finding the Fourth Proportional to 19,881.24, 29,821.78 and 10,028.80

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Solution

The fourth proportional to 19,881.24, 29,821.78 and 10,028.80 is: 15,043.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,881.24 : 29,821.78 = 10,028.80 : x
  2. Step 2: Convert to fraction form
    19,881.24/29,821.78 = 10,028.80/x
  3. Step 3: Cross multiply
    19,881.24x = 29,821.78 × 10,028.80
  4. Step 4: Simplify right side
    19,881.24x = 299,076,667.26
  5. Step 5: Solve for x
    x = 299,076,667.26/19,881.24
  6. Step 6: Final answer
    x = 15,043.16

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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.