Home / 30,155.16-45,225.54-11,436.96

Finding the Fourth Proportional to 30,155.16, 45,225.54 and 11,436.96

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Solution

The fourth proportional to 30,155.16, 45,225.54 and 11,436.96 is: 17,152.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,155.16 : 45,225.54 = 11,436.96 : x
  2. Step 2: Convert to fraction form
    30,155.16/45,225.54 = 11,436.96/x
  3. Step 3: Cross multiply
    30,155.16x = 45,225.54 × 11,436.96
  4. Step 4: Simplify right side
    30,155.16x = 517,242,691.96
  5. Step 5: Solve for x
    x = 517,242,691.96/30,155.16
  6. Step 6: Final answer
    x = 17,152.71

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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.