Home / 29,138.02-43,707.06-12,487.30

Finding the Fourth Proportional to 29,138.02, 43,707.06 and 12,487.30

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Solution

The fourth proportional to 29,138.02, 43,707.06 and 12,487.30 is: 18,730.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,138.02 : 43,707.06 = 12,487.30 : x
  2. Step 2: Convert to fraction form
    29,138.02/43,707.06 = 12,487.30/x
  3. Step 3: Cross multiply
    29,138.02x = 43,707.06 × 12,487.30
  4. Step 4: Simplify right side
    29,138.02x = 545,783,170.34
  5. Step 5: Solve for x
    x = 545,783,170.34/29,138.02
  6. Step 6: Final answer
    x = 18,730.96

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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.