Home / 37,633.56-56,430.36-12,665.28

Finding the Fourth Proportional to 37,633.56, 56,430.36 and 12,665.28

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Solution

The fourth proportional to 37,633.56, 56,430.36 and 12,665.28 is: 18,991.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,633.56 : 56,430.36 = 12,665.28 : x
  2. Step 2: Convert to fraction form
    37,633.56/56,430.36 = 12,665.28/x
  3. Step 3: Cross multiply
    37,633.56x = 56,430.36 × 12,665.28
  4. Step 4: Simplify right side
    37,633.56x = 714,706,309.90
  5. Step 5: Solve for x
    x = 714,706,309.90/37,633.56
  6. Step 6: Final answer
    x = 18,991.20

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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.