Home / 31,109.90-46,659.45-11,378.30

Finding the Fourth Proportional to 31,109.90, 46,659.45 and 11,378.30

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Solution

The fourth proportional to 31,109.90, 46,659.45 and 11,378.30 is: 17,065.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,109.90 : 46,659.45 = 11,378.30 : x
  2. Step 2: Convert to fraction form
    31,109.90/46,659.45 = 11,378.30/x
  3. Step 3: Cross multiply
    31,109.90x = 46,659.45 × 11,378.30
  4. Step 4: Simplify right side
    31,109.90x = 530,905,219.94
  5. Step 5: Solve for x
    x = 530,905,219.94/31,109.90
  6. Step 6: Final answer
    x = 17,065.47

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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.