Home / 28,244.06-38,977.32-15,497.88

Finding the Fourth Proportional to 28,244.06, 38,977.32 and 15,497.88

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Solution

The fourth proportional to 28,244.06, 38,977.32 and 15,497.88 is: 21,387.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,244.06 : 38,977.32 = 15,497.88 : x
  2. Step 2: Convert to fraction form
    28,244.06/38,977.32 = 15,497.88/x
  3. Step 3: Cross multiply
    28,244.06x = 38,977.32 × 15,497.88
  4. Step 4: Simplify right side
    28,244.06x = 604,065,828.08
  5. Step 5: Solve for x
    x = 604,065,828.08/28,244.06
  6. Step 6: Final answer
    x = 21,387.36

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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.