Home / 30,579.06-45,829.10-13,699.74

Finding the Fourth Proportional to 30,579.06, 45,829.10 and 13,699.74

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Solution

The fourth proportional to 30,579.06, 45,829.10 and 13,699.74 is: 20,531.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,579.06 : 45,829.10 = 13,699.74 : x
  2. Step 2: Convert to fraction form
    30,579.06/45,829.10 = 13,699.74/x
  3. Step 3: Cross multiply
    30,579.06x = 45,829.10 × 13,699.74
  4. Step 4: Simplify right side
    30,579.06x = 627,846,754.43
  5. Step 5: Solve for x
    x = 627,846,754.43/30,579.06
  6. Step 6: Final answer
    x = 20,531.92

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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.