Home / 30,600.21-42,228.63-16,989.18

Finding the Fourth Proportional to 30,600.21, 42,228.63 and 16,989.18

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Solution

The fourth proportional to 30,600.21, 42,228.63 and 16,989.18 is: 23,445.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,600.21 : 42,228.63 = 16,989.18 : x
  2. Step 2: Convert to fraction form
    30,600.21/42,228.63 = 16,989.18/x
  3. Step 3: Cross multiply
    30,600.21x = 42,228.63 × 16,989.18
  4. Step 4: Simplify right side
    30,600.21x = 717,429,796.22
  5. Step 5: Solve for x
    x = 717,429,796.22/30,600.21
  6. Step 6: Final answer
    x = 23,445.26

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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.