Home / 31,215.90-43,077.74-17,787.04

Finding the Fourth Proportional to 31,215.90, 43,077.74 and 17,787.04

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Solution

The fourth proportional to 31,215.90, 43,077.74 and 17,787.04 is: 24,546.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,215.90 : 43,077.74 = 17,787.04 : x
  2. Step 2: Convert to fraction form
    31,215.90/43,077.74 = 17,787.04/x
  3. Step 3: Cross multiply
    31,215.90x = 43,077.74 × 17,787.04
  4. Step 4: Simplify right side
    31,215.90x = 766,225,484.49
  5. Step 5: Solve for x
    x = 766,225,484.49/31,215.90
  6. Step 6: Final answer
    x = 24,546.00

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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.