Home / 30,750.23-42,429.67-17,318.60

Finding the Fourth Proportional to 30,750.23, 42,429.67 and 17,318.60

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Solution

The fourth proportional to 30,750.23, 42,429.67 and 17,318.60 is: 23,896.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,750.23 : 42,429.67 = 17,318.60 : x
  2. Step 2: Convert to fraction form
    30,750.23/42,429.67 = 17,318.60/x
  3. Step 3: Cross multiply
    30,750.23x = 42,429.67 × 17,318.60
  4. Step 4: Simplify right side
    30,750.23x = 734,822,482.86
  5. Step 5: Solve for x
    x = 734,822,482.86/30,750.23
  6. Step 6: Final answer
    x = 23,896.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.