Home / 30,663.06-42,312.92-17,236.34

Finding the Fourth Proportional to 30,663.06, 42,312.92 and 17,236.34

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Solution

The fourth proportional to 30,663.06, 42,312.92 and 17,236.34 is: 23,784.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,663.06 : 42,312.92 = 17,236.34 : x
  2. Step 2: Convert to fraction form
    30,663.06/42,312.92 = 17,236.34/x
  3. Step 3: Cross multiply
    30,663.06x = 42,312.92 × 17,236.34
  4. Step 4: Simplify right side
    30,663.06x = 729,319,812.82
  5. Step 5: Solve for x
    x = 729,319,812.82/30,663.06
  6. Step 6: Final answer
    x = 23,784.96

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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.