Home / 19,251.36-28,878.88-5,400.32

Finding the Fourth Proportional to 19,251.36, 28,878.88 and 5,400.32

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Solution

The fourth proportional to 19,251.36, 28,878.88 and 5,400.32 is: 8,101.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,251.36 : 28,878.88 = 5,400.32 : x
  2. Step 2: Convert to fraction form
    19,251.36/28,878.88 = 5,400.32/x
  3. Step 3: Cross multiply
    19,251.36x = 28,878.88 × 5,400.32
  4. Step 4: Simplify right side
    19,251.36x = 155,955,193.24
  5. Step 5: Solve for x
    x = 155,955,193.24/19,251.36
  6. Step 6: Final answer
    x = 8,101.00

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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.