Home / 31,087.65-46,621.75-13,539.81

Finding the Fourth Proportional to 31,087.65, 46,621.75 and 13,539.81

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Solution

The fourth proportional to 31,087.65, 46,621.75 and 13,539.81 is: 20,305.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,087.65 : 46,621.75 = 13,539.81 : x
  2. Step 2: Convert to fraction form
    31,087.65/46,621.75 = 13,539.81/x
  3. Step 3: Cross multiply
    31,087.65x = 46,621.75 × 13,539.81
  4. Step 4: Simplify right side
    31,087.65x = 631,249,636.87
  5. Step 5: Solve for x
    x = 631,249,636.87/31,087.65
  6. Step 6: Final answer
    x = 20,305.48

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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.