Home / 30,989.90-42,764.67-17,560.37

Finding the Fourth Proportional to 30,989.90, 42,764.67 and 17,560.37

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Solution

The fourth proportional to 30,989.90, 42,764.67 and 17,560.37 is: 24,232.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,989.90 : 42,764.67 = 17,560.37 : x
  2. Step 2: Convert to fraction form
    30,989.90/42,764.67 = 17,560.37/x
  3. Step 3: Cross multiply
    30,989.90x = 42,764.67 × 17,560.37
  4. Step 4: Simplify right side
    30,989.90x = 750,963,214.30
  5. Step 5: Solve for x
    x = 750,963,214.30/30,989.90
  6. Step 6: Final answer
    x = 24,232.52

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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.