Home / 29,129.04-43,693.56-12,478.28

Finding the Fourth Proportional to 29,129.04, 43,693.56 and 12,478.28

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Solution

The fourth proportional to 29,129.04, 43,693.56 and 12,478.28 is: 18,717.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,129.04 : 43,693.56 = 12,478.28 : x
  2. Step 2: Convert to fraction form
    29,129.04/43,693.56 = 12,478.28/x
  3. Step 3: Cross multiply
    29,129.04x = 43,693.56 × 12,478.28
  4. Step 4: Simplify right side
    29,129.04x = 545,220,475.88
  5. Step 5: Solve for x
    x = 545,220,475.88/29,129.04
  6. Step 6: Final answer
    x = 18,717.42

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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.