Home / 31,215.88-43,077.49-17,787.93

Finding the Fourth Proportional to 31,215.88, 43,077.49 and 17,787.93

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Solution

The fourth proportional to 31,215.88, 43,077.49 and 17,787.93 is: 24,547.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,215.88 : 43,077.49 = 17,787.93 : x
  2. Step 2: Convert to fraction form
    31,215.88/43,077.49 = 17,787.93/x
  3. Step 3: Cross multiply
    31,215.88x = 43,077.49 × 17,787.93
  4. Step 4: Simplify right side
    31,215.88x = 766,259,376.70
  5. Step 5: Solve for x
    x = 766,259,376.70/31,215.88
  6. Step 6: Final answer
    x = 24,547.10

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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.