Home / 30,818.31-42,529.24-16,671.15

Finding the Fourth Proportional to 30,818.31, 42,529.24 and 16,671.15

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Solution

The fourth proportional to 30,818.31, 42,529.24 and 16,671.15 is: 23,006.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,818.31 : 42,529.24 = 16,671.15 : x
  2. Step 2: Convert to fraction form
    30,818.31/42,529.24 = 16,671.15/x
  3. Step 3: Cross multiply
    30,818.31x = 42,529.24 × 16,671.15
  4. Step 4: Simplify right side
    30,818.31x = 709,011,339.43
  5. Step 5: Solve for x
    x = 709,011,339.43/30,818.31
  6. Step 6: Final answer
    x = 23,006.17

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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.