Home / 31,239.20-46,800.48-20,858.24

Finding the Fourth Proportional to 31,239.20, 46,800.48 and 20,858.24

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Solution

The fourth proportional to 31,239.20, 46,800.48 and 20,858.24 is: 31,248.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,239.20 : 46,800.48 = 20,858.24 : x
  2. Step 2: Convert to fraction form
    31,239.20/46,800.48 = 20,858.24/x
  3. Step 3: Cross multiply
    31,239.20x = 46,800.48 × 20,858.24
  4. Step 4: Simplify right side
    31,239.20x = 976,175,643.96
  5. Step 5: Solve for x
    x = 976,175,643.96/31,239.20
  6. Step 6: Final answer
    x = 31,248.42

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1.5x scale

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.