Home / 30,536.28-42,116.04-20,461.44

Finding the Fourth Proportional to 30,536.28, 42,116.04 and 20,461.44

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Solution

The fourth proportional to 30,536.28, 42,116.04 and 20,461.44 is: 28,220.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,536.28 : 42,116.04 = 20,461.44 : x
  2. Step 2: Convert to fraction form
    30,536.28/42,116.04 = 20,461.44/x
  3. Step 3: Cross multiply
    30,536.28x = 42,116.04 × 20,461.44
  4. Step 4: Simplify right side
    30,536.28x = 861,754,825.50
  5. Step 5: Solve for x
    x = 861,754,825.50/30,536.28
  6. Step 6: Final answer
    x = 28,220.69

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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.