Home / 28,842.98-39,787.89-19,894.91

Finding the Fourth Proportional to 28,842.98, 39,787.89 and 19,894.91

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Solution

The fourth proportional to 28,842.98, 39,787.89 and 19,894.91 is: 27,444.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,842.98 : 39,787.89 = 19,894.91 : x
  2. Step 2: Convert to fraction form
    28,842.98/39,787.89 = 19,894.91/x
  3. Step 3: Cross multiply
    28,842.98x = 39,787.89 × 19,894.91
  4. Step 4: Simplify right side
    28,842.98x = 791,576,490.64
  5. Step 5: Solve for x
    x = 791,576,490.64/28,842.98
  6. Step 6: Final answer
    x = 27,444.34

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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.