Home / 30,717-42,374.58-26,731.80

Finding the Fourth Proportional to 30,717, 42,374.58 and 26,731.80

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Solution

The fourth proportional to 30,717, 42,374.58 and 26,731.80 is: 36,876.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,717 : 42,374.58 = 26,731.80 : x
  2. Step 2: Convert to fraction form
    30,717/42,374.58 = 26,731.80/x
  3. Step 3: Cross multiply
    30,717x = 42,374.58 × 26,731.80
  4. Step 4: Simplify right side
    30,717x = 1,132,748,797.64
  5. Step 5: Solve for x
    x = 1,132,748,797.64/30,717
  6. Step 6: Final answer
    x = 36,876.93

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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.