Home / 30,676.36-42,334.59-17,937.76

Finding the Fourth Proportional to 30,676.36, 42,334.59 and 17,937.76

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Solution

The fourth proportional to 30,676.36, 42,334.59 and 17,937.76 is: 24,754.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,676.36 : 42,334.59 = 17,937.76 : x
  2. Step 2: Convert to fraction form
    30,676.36/42,334.59 = 17,937.76/x
  3. Step 3: Cross multiply
    30,676.36x = 42,334.59 × 17,937.76
  4. Step 4: Simplify right side
    30,676.36x = 759,387,715.12
  5. Step 5: Solve for x
    x = 759,387,715.12/30,676.36
  6. Step 6: Final answer
    x = 24,754.82

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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.