Home / 30,864.78-42,593.30-17,435.38

Finding the Fourth Proportional to 30,864.78, 42,593.30 and 17,435.38

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Solution

The fourth proportional to 30,864.78, 42,593.30 and 17,435.38 is: 24,060.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,864.78 : 42,593.30 = 17,435.38 : x
  2. Step 2: Convert to fraction form
    30,864.78/42,593.30 = 17,435.38/x
  3. Step 3: Cross multiply
    30,864.78x = 42,593.30 × 17,435.38
  4. Step 4: Simplify right side
    30,864.78x = 742,630,370.95
  5. Step 5: Solve for x
    x = 742,630,370.95/30,864.78
  6. Step 6: Final answer
    x = 24,060.77

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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.