Home / 30,826.91-42,541.19-16,679.76

Finding the Fourth Proportional to 30,826.91, 42,541.19 and 16,679.76

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Solution

The fourth proportional to 30,826.91, 42,541.19 and 16,679.76 is: 23,018.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,826.91 : 42,541.19 = 16,679.76 : x
  2. Step 2: Convert to fraction form
    30,826.91/42,541.19 = 16,679.76/x
  3. Step 3: Cross multiply
    30,826.91x = 42,541.19 × 16,679.76
  4. Step 4: Simplify right side
    30,826.91x = 709,576,839.31
  5. Step 5: Solve for x
    x = 709,576,839.31/30,826.91
  6. Step 6: Final answer
    x = 23,018.10

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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.