Home / 30,986.34-42,762.86-17,561.92

Finding the Fourth Proportional to 30,986.34, 42,762.86 and 17,561.92

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Solution

The fourth proportional to 30,986.34, 42,762.86 and 17,561.92 is: 24,236.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,986.34 : 42,762.86 = 17,561.92 : x
  2. Step 2: Convert to fraction form
    30,986.34/42,762.86 = 17,561.92/x
  3. Step 3: Cross multiply
    30,986.34x = 42,762.86 × 17,561.92
  4. Step 4: Simplify right side
    30,986.34x = 750,997,926.29
  5. Step 5: Solve for x
    x = 750,997,926.29/30,986.34
  6. Step 6: Final answer
    x = 24,236.42

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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.