Home / 37,089.63-55,643.19-12,129.58

Finding the Fourth Proportional to 37,089.63, 55,643.19 and 12,129.58

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Solution

The fourth proportional to 37,089.63, 55,643.19 and 12,129.58 is: 18,197.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,089.63 : 55,643.19 = 12,129.58 : x
  2. Step 2: Convert to fraction form
    37,089.63/55,643.19 = 12,129.58/x
  3. Step 3: Cross multiply
    37,089.63x = 55,643.19 × 12,129.58
  4. Step 4: Simplify right side
    37,089.63x = 674,928,385.45
  5. Step 5: Solve for x
    x = 674,928,385.45/37,089.63
  6. Step 6: Final answer
    x = 18,197.23

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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.