Home / 30,561.48-42,178.34-17,136.36

Finding the Fourth Proportional to 30,561.48, 42,178.34 and 17,136.36

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Solution

The fourth proportional to 30,561.48, 42,178.34 and 17,136.36 is: 23,650.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,561.48 : 42,178.34 = 17,136.36 : x
  2. Step 2: Convert to fraction form
    30,561.48/42,178.34 = 17,136.36/x
  3. Step 3: Cross multiply
    30,561.48x = 42,178.34 × 17,136.36
  4. Step 4: Simplify right side
    30,561.48x = 722,783,218.44
  5. Step 5: Solve for x
    x = 722,783,218.44/30,561.48
  6. Step 6: Final answer
    x = 23,650.14

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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.