Home / 27,759.05-38,307.40-15,012.14

Finding the Fourth Proportional to 27,759.05, 38,307.40 and 15,012.14

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Solution

The fourth proportional to 27,759.05, 38,307.40 and 15,012.14 is: 20,716.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,759.05 : 38,307.40 = 15,012.14 : x
  2. Step 2: Convert to fraction form
    27,759.05/38,307.40 = 15,012.14/x
  3. Step 3: Cross multiply
    27,759.05x = 38,307.40 × 15,012.14
  4. Step 4: Simplify right side
    27,759.05x = 575,075,822.77
  5. Step 5: Solve for x
    x = 575,075,822.77/27,759.05
  6. Step 6: Final answer
    x = 20,716.69

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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.