Home / 30,056.55-45,035.42-18,935.66

Finding the Fourth Proportional to 30,056.55, 45,035.42 and 18,935.66

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Solution

The fourth proportional to 30,056.55, 45,035.42 and 18,935.66 is: 28,372.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,056.55 : 45,035.42 = 18,935.66 : x
  2. Step 2: Convert to fraction form
    30,056.55/45,035.42 = 18,935.66/x
  3. Step 3: Cross multiply
    30,056.55x = 45,035.42 × 18,935.66
  4. Step 4: Simplify right side
    30,056.55x = 852,775,081.22
  5. Step 5: Solve for x
    x = 852,775,081.22/30,056.55
  6. Step 6: Final answer
    x = 28,372.35

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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.