Home / 42,419.75-63,629.77-14,340.03

Finding the Fourth Proportional to 42,419.75, 63,629.77 and 14,340.03

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Solution

The fourth proportional to 42,419.75, 63,629.77 and 14,340.03 is: 21,510.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,419.75 : 63,629.77 = 14,340.03 : x
  2. Step 2: Convert to fraction form
    42,419.75/63,629.77 = 14,340.03/x
  3. Step 3: Cross multiply
    42,419.75x = 63,629.77 × 14,340.03
  4. Step 4: Simplify right side
    42,419.75x = 912,452,774.84
  5. Step 5: Solve for x
    x = 912,452,774.84/42,419.75
  6. Step 6: Final answer
    x = 21,510.10

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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.