Home / 30,318.15-45,504.23-17,822.55

Finding the Fourth Proportional to 30,318.15, 45,504.23 and 17,822.55

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Solution

The fourth proportional to 30,318.15, 45,504.23 and 17,822.55 is: 26,749.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,318.15 : 45,504.23 = 17,822.55 : x
  2. Step 2: Convert to fraction form
    30,318.15/45,504.23 = 17,822.55/x
  3. Step 3: Cross multiply
    30,318.15x = 45,504.23 × 17,822.55
  4. Step 4: Simplify right side
    30,318.15x = 811,001,325.27
  5. Step 5: Solve for x
    x = 811,001,325.27/30,318.15
  6. Step 6: Final answer
    x = 26,749.70

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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.