Home / 30,641.30-42,283.40-17,213.12

Finding the Fourth Proportional to 30,641.30, 42,283.40 and 17,213.12

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Solution

The fourth proportional to 30,641.30, 42,283.40 and 17,213.12 is: 23,753.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,641.30 : 42,283.40 = 17,213.12 : x
  2. Step 2: Convert to fraction form
    30,641.30/42,283.40 = 17,213.12/x
  3. Step 3: Cross multiply
    30,641.30x = 42,283.40 × 17,213.12
  4. Step 4: Simplify right side
    30,641.30x = 727,829,238.21
  5. Step 5: Solve for x
    x = 727,829,238.21/30,641.30
  6. Step 6: Final answer
    x = 23,753.21

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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.