Home / 19,113.75-28,615.01-14,205.15

Finding the Fourth Proportional to 19,113.75, 28,615.01 and 14,205.15

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Solution

The fourth proportional to 19,113.75, 28,615.01 and 14,205.15 is: 21,266.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,113.75 : 28,615.01 = 14,205.15 : x
  2. Step 2: Convert to fraction form
    19,113.75/28,615.01 = 14,205.15/x
  3. Step 3: Cross multiply
    19,113.75x = 28,615.01 × 14,205.15
  4. Step 4: Simplify right side
    19,113.75x = 406,480,438.28
  5. Step 5: Solve for x
    x = 406,480,438.28/19,113.75
  6. Step 6: Final answer
    x = 21,266.39

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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.