Home / 30,466.82-42,044.77-18,530.66

Finding the Fourth Proportional to 30,466.82, 42,044.77 and 18,530.66

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Solution

The fourth proportional to 30,466.82, 42,044.77 and 18,530.66 is: 25,572.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,466.82 : 42,044.77 = 18,530.66 : x
  2. Step 2: Convert to fraction form
    30,466.82/42,044.77 = 18,530.66/x
  3. Step 3: Cross multiply
    30,466.82x = 42,044.77 × 18,530.66
  4. Step 4: Simplify right side
    30,466.82x = 779,117,337.65
  5. Step 5: Solve for x
    x = 779,117,337.65/30,466.82
  6. Step 6: Final answer
    x = 25,572.65

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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.