Home / 30,966.40-42,732.93-16,818.94

Finding the Fourth Proportional to 30,966.40, 42,732.93 and 16,818.94

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Solution

The fourth proportional to 30,966.40, 42,732.93 and 16,818.94 is: 23,209.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,966.40 : 42,732.93 = 16,818.94 : x
  2. Step 2: Convert to fraction form
    30,966.40/42,732.93 = 16,818.94/x
  3. Step 3: Cross multiply
    30,966.40x = 42,732.93 × 16,818.94
  4. Step 4: Simplify right side
    30,966.40x = 718,722,585.69
  5. Step 5: Solve for x
    x = 718,722,585.69/30,966.40
  6. Step 6: Final answer
    x = 23,209.76

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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.