Home / 23,113.16-31,893.80-13,419.26

Finding the Fourth Proportional to 23,113.16, 31,893.80 and 13,419.26

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Solution

The fourth proportional to 23,113.16, 31,893.80 and 13,419.26 is: 18,517.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,113.16 : 31,893.80 = 13,419.26 : x
  2. Step 2: Convert to fraction form
    23,113.16/31,893.80 = 13,419.26/x
  3. Step 3: Cross multiply
    23,113.16x = 31,893.80 × 13,419.26
  4. Step 4: Simplify right side
    23,113.16x = 427,991,068.67
  5. Step 5: Solve for x
    x = 427,991,068.67/23,113.16
  6. Step 6: Final answer
    x = 18,517.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.