Home / 28,054.16-42,052.80-18,199.72

Finding the Fourth Proportional to 28,054.16, 42,052.80 and 18,199.72

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Solution

The fourth proportional to 28,054.16, 42,052.80 and 18,199.72 is: 27,281.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,054.16 : 42,052.80 = 18,199.72 : x
  2. Step 2: Convert to fraction form
    28,054.16/42,052.80 = 18,199.72/x
  3. Step 3: Cross multiply
    28,054.16x = 42,052.80 × 18,199.72
  4. Step 4: Simplify right side
    28,054.16x = 765,349,185.22
  5. Step 5: Solve for x
    x = 765,349,185.22/28,054.16
  6. Step 6: Final answer
    x = 27,281.13

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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.