Home / 28,437.42-42,637.86-11,808.93

Finding the Fourth Proportional to 28,437.42, 42,637.86 and 11,808.93

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Solution

The fourth proportional to 28,437.42, 42,637.86 and 11,808.93 is: 17,705.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,437.42 : 42,637.86 = 11,808.93 : x
  2. Step 2: Convert to fraction form
    28,437.42/42,637.86 = 11,808.93/x
  3. Step 3: Cross multiply
    28,437.42x = 42,637.86 × 11,808.93
  4. Step 4: Simplify right side
    28,437.42x = 503,507,504.09
  5. Step 5: Solve for x
    x = 503,507,504.09/28,437.42
  6. Step 6: Final answer
    x = 17,705.81

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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.