Home / 30,881.26-46,312.80-13,111.66

Finding the Fourth Proportional to 30,881.26, 46,312.80 and 13,111.66

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Solution

The fourth proportional to 30,881.26, 46,312.80 and 13,111.66 is: 19,663.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,881.26 : 46,312.80 = 13,111.66 : x
  2. Step 2: Convert to fraction form
    30,881.26/46,312.80 = 13,111.66/x
  3. Step 3: Cross multiply
    30,881.26x = 46,312.80 × 13,111.66
  4. Step 4: Simplify right side
    30,881.26x = 607,237,687.25
  5. Step 5: Solve for x
    x = 607,237,687.25/30,881.26
  6. Step 6: Final answer
    x = 19,663.63

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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.