Home / 30,818.28-42,529.19-16,671.09

Finding the Fourth Proportional to 30,818.28, 42,529.19 and 16,671.09

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Solution

The fourth proportional to 30,818.28, 42,529.19 and 16,671.09 is: 23,006.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,818.28 : 42,529.19 = 16,671.09 : x
  2. Step 2: Convert to fraction form
    30,818.28/42,529.19 = 16,671.09/x
  3. Step 3: Cross multiply
    30,818.28x = 42,529.19 × 16,671.09
  4. Step 4: Simplify right side
    30,818.28x = 709,007,870.76
  5. Step 5: Solve for x
    x = 709,007,870.76/30,818.28
  6. Step 6: Final answer
    x = 23,006.08

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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.