Home / 35,731.44-49,307.13-19,815.90

Finding the Fourth Proportional to 35,731.44, 49,307.13 and 19,815.90

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Solution

The fourth proportional to 35,731.44, 49,307.13 and 19,815.90 is: 27,344.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,731.44 : 49,307.13 = 19,815.90 : x
  2. Step 2: Convert to fraction form
    35,731.44/49,307.13 = 19,815.90/x
  3. Step 3: Cross multiply
    35,731.44x = 49,307.13 × 19,815.90
  4. Step 4: Simplify right side
    35,731.44x = 977,065,157.37
  5. Step 5: Solve for x
    x = 977,065,157.37/35,731.44
  6. Step 6: Final answer
    x = 27,344.69

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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.