Home / 30,141.32-45,239.99-15,361.31

Finding the Fourth Proportional to 30,141.32, 45,239.99 and 15,361.31

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Solution

The fourth proportional to 30,141.32, 45,239.99 and 15,361.31 is: 23,056.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,141.32 : 45,239.99 = 15,361.31 : x
  2. Step 2: Convert to fraction form
    30,141.32/45,239.99 = 15,361.31/x
  3. Step 3: Cross multiply
    30,141.32x = 45,239.99 × 15,361.31
  4. Step 4: Simplify right side
    30,141.32x = 694,945,547.08
  5. Step 5: Solve for x
    x = 694,945,547.08/30,141.32
  6. Step 6: Final answer
    x = 23,056.25

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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.