Home / 36,690.24-55,035.36-8,988

Finding the Fourth Proportional to 36,690.24, 55,035.36 and 8,988

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Solution

The fourth proportional to 36,690.24, 55,035.36 and 8,988 is: 13,482.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,690.24 : 55,035.36 = 8,988 : x
  2. Step 2: Convert to fraction form
    36,690.24/55,035.36 = 8,988/x
  3. Step 3: Cross multiply
    36,690.24x = 55,035.36 × 8,988
  4. Step 4: Simplify right side
    36,690.24x = 494,657,815.68
  5. Step 5: Solve for x
    x = 494,657,815.68/36,690.24
  6. Step 6: Final answer
    x = 13,482.00

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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.