Home / 19,800.12-27,295.28-15,076.20

Finding the Fourth Proportional to 19,800.12, 27,295.28 and 15,076.20

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Solution

The fourth proportional to 19,800.12, 27,295.28 and 15,076.20 is: 20,783.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,800.12 : 27,295.28 = 15,076.20 : x
  2. Step 2: Convert to fraction form
    19,800.12/27,295.28 = 15,076.20/x
  3. Step 3: Cross multiply
    19,800.12x = 27,295.28 × 15,076.20
  4. Step 4: Simplify right side
    19,800.12x = 411,509,100.34
  5. Step 5: Solve for x
    x = 411,509,100.34/19,800.12
  6. Step 6: Final answer
    x = 20,783.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.