Home / 30,946.66-42,707.58-17,149.30

Finding the Fourth Proportional to 30,946.66, 42,707.58 and 17,149.30

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Solution

The fourth proportional to 30,946.66, 42,707.58 and 17,149.30 is: 23,666.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,946.66 : 42,707.58 = 17,149.30 : x
  2. Step 2: Convert to fraction form
    30,946.66/42,707.58 = 17,149.30/x
  3. Step 3: Cross multiply
    30,946.66x = 42,707.58 × 17,149.30
  4. Step 4: Simplify right side
    30,946.66x = 732,405,101.69
  5. Step 5: Solve for x
    x = 732,405,101.69/30,946.66
  6. Step 6: Final answer
    x = 23,666.69

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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.