Home / 30,606.13-42,235.19-17,178.49

Finding the Fourth Proportional to 30,606.13, 42,235.19 and 17,178.49

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Solution

The fourth proportional to 30,606.13, 42,235.19 and 17,178.49 is: 23,705.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,606.13 : 42,235.19 = 17,178.49 : x
  2. Step 2: Convert to fraction form
    30,606.13/42,235.19 = 17,178.49/x
  3. Step 3: Cross multiply
    30,606.13x = 42,235.19 × 17,178.49
  4. Step 4: Simplify right side
    30,606.13x = 725,536,703.17
  5. Step 5: Solve for x
    x = 725,536,703.17/30,606.13
  6. Step 6: Final answer
    x = 23,705.60

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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.