Home / 43,242.81-64,870.89-18,282.96

Finding the Fourth Proportional to 43,242.81, 64,870.89 and 18,282.96

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Solution

The fourth proportional to 43,242.81, 64,870.89 and 18,282.96 is: 27,427.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,242.81 : 64,870.89 = 18,282.96 : x
  2. Step 2: Convert to fraction form
    43,242.81/64,870.89 = 18,282.96/x
  3. Step 3: Cross multiply
    43,242.81x = 64,870.89 × 18,282.96
  4. Step 4: Simplify right side
    43,242.81x = 1,186,031,921.31
  5. Step 5: Solve for x
    x = 1,186,031,921.31/43,242.81
  6. Step 6: Final answer
    x = 27,427.27

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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.