Home / 30,675.60-42,336.81-17,247.96

Finding the Fourth Proportional to 30,675.60, 42,336.81 and 17,247.96

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Solution

The fourth proportional to 30,675.60, 42,336.81 and 17,247.96 is: 23,804.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,675.60 : 42,336.81 = 17,247.96 : x
  2. Step 2: Convert to fraction form
    30,675.60/42,336.81 = 17,247.96/x
  3. Step 3: Cross multiply
    30,675.60x = 42,336.81 × 17,247.96
  4. Step 4: Simplify right side
    30,675.60x = 730,223,605.41
  5. Step 5: Solve for x
    x = 730,223,605.41/30,675.60
  6. Step 6: Final answer
    x = 23,804.70

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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.