Home / 30,336.02-45,512.91-8,989.30

Finding the Fourth Proportional to 30,336.02, 45,512.91 and 8,989.30

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Solution

The fourth proportional to 30,336.02, 45,512.91 and 8,989.30 is: 13,486.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,336.02 : 45,512.91 = 8,989.30 : x
  2. Step 2: Convert to fraction form
    30,336.02/45,512.91 = 8,989.30/x
  3. Step 3: Cross multiply
    30,336.02x = 45,512.91 × 8,989.30
  4. Step 4: Simplify right side
    30,336.02x = 409,129,412.04
  5. Step 5: Solve for x
    x = 409,129,412.04/30,336.02
  6. Step 6: Final answer
    x = 13,486.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.