Home / 42,611.80-63,912.10-13,032.60

Finding the Fourth Proportional to 42,611.80, 63,912.10 and 13,032.60

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Solution

The fourth proportional to 42,611.80, 63,912.10 and 13,032.60 is: 19,547.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,611.80 : 63,912.10 = 13,032.60 : x
  2. Step 2: Convert to fraction form
    42,611.80/63,912.10 = 13,032.60/x
  3. Step 3: Cross multiply
    42,611.80x = 63,912.10 × 13,032.60
  4. Step 4: Simplify right side
    42,611.80x = 832,940,834.46
  5. Step 5: Solve for x
    x = 832,940,834.46/42,611.80
  6. Step 6: Final answer
    x = 19,547.19

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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.