Home / 30,989.77-42,765.72-17,563.57

Finding the Fourth Proportional to 30,989.77, 42,765.72 and 17,563.57

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Solution

The fourth proportional to 30,989.77, 42,765.72 and 17,563.57 is: 24,237.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,989.77 : 42,765.72 = 17,563.57 : x
  2. Step 2: Convert to fraction form
    30,989.77/42,765.72 = 17,563.57/x
  3. Step 3: Cross multiply
    30,989.77x = 42,765.72 × 17,563.57
  4. Step 4: Simplify right side
    30,989.77x = 751,118,642.84
  5. Step 5: Solve for x
    x = 751,118,642.84/30,989.77
  6. Step 6: Final answer
    x = 24,237.63

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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.