Home / 30,816.85-42,526.56-17,387.76

Finding the Fourth Proportional to 30,816.85, 42,526.56 and 17,387.76

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Solution

The fourth proportional to 30,816.85, 42,526.56 and 17,387.76 is: 23,994.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,816.85 : 42,526.56 = 17,387.76 : x
  2. Step 2: Convert to fraction form
    30,816.85/42,526.56 = 17,387.76/x
  3. Step 3: Cross multiply
    30,816.85x = 42,526.56 × 17,387.76
  4. Step 4: Simplify right side
    30,816.85x = 739,441,531.97
  5. Step 5: Solve for x
    x = 739,441,531.97/30,816.85
  6. Step 6: Final answer
    x = 23,994.71

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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.