Home / 30,698.21-45,987.10-15,916.79

Finding the Fourth Proportional to 30,698.21, 45,987.10 and 15,916.79

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Solution

The fourth proportional to 30,698.21, 45,987.10 and 15,916.79 is: 23,843.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,698.21 : 45,987.10 = 15,916.79 : x
  2. Step 2: Convert to fraction form
    30,698.21/45,987.10 = 15,916.79/x
  3. Step 3: Cross multiply
    30,698.21x = 45,987.10 × 15,916.79
  4. Step 4: Simplify right side
    30,698.21x = 731,967,013.41
  5. Step 5: Solve for x
    x = 731,967,013.41/30,698.21
  6. Step 6: Final answer
    x = 23,843.96

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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.