Home / 31,285.61-46,918.48-10,220.85

Finding the Fourth Proportional to 31,285.61, 46,918.48 and 10,220.85

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Solution

The fourth proportional to 31,285.61, 46,918.48 and 10,220.85 is: 15,328.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,285.61 : 46,918.48 = 10,220.85 : x
  2. Step 2: Convert to fraction form
    31,285.61/46,918.48 = 10,220.85/x
  3. Step 3: Cross multiply
    31,285.61x = 46,918.48 × 10,220.85
  4. Step 4: Simplify right side
    31,285.61x = 479,546,746.31
  5. Step 5: Solve for x
    x = 479,546,746.31/31,285.61
  6. Step 6: Final answer
    x = 15,328.03

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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.