Home / 30,185.95-45,268.66-10,459.90

Finding the Fourth Proportional to 30,185.95, 45,268.66 and 10,459.90

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Solution

The fourth proportional to 30,185.95, 45,268.66 and 10,459.90 is: 15,686.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,185.95 : 45,268.66 = 10,459.90 : x
  2. Step 2: Convert to fraction form
    30,185.95/45,268.66 = 10,459.90/x
  3. Step 3: Cross multiply
    30,185.95x = 45,268.66 × 10,459.90
  4. Step 4: Simplify right side
    30,185.95x = 473,505,656.73
  5. Step 5: Solve for x
    x = 473,505,656.73/30,185.95
  6. Step 6: Final answer
    x = 15,686.29

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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.