Home / 30,946.01-42,695.70-18,195.12

Finding the Fourth Proportional to 30,946.01, 42,695.70 and 18,195.12

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Solution

The fourth proportional to 30,946.01, 42,695.70 and 18,195.12 is: 25,103.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,946.01 : 42,695.70 = 18,195.12 : x
  2. Step 2: Convert to fraction form
    30,946.01/42,695.70 = 18,195.12/x
  3. Step 3: Cross multiply
    30,946.01x = 42,695.70 × 18,195.12
  4. Step 4: Simplify right side
    30,946.01x = 776,853,384.98
  5. Step 5: Solve for x
    x = 776,853,384.98/30,946.01
  6. Step 6: Final answer
    x = 25,103.51

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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.