Home / 30,716.40-42,385.32-17,285.52

Finding the Fourth Proportional to 30,716.40, 42,385.32 and 17,285.52

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Solution

The fourth proportional to 30,716.40, 42,385.32 and 17,285.52 is: 23,852.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,716.40 : 42,385.32 = 17,285.52 : x
  2. Step 2: Convert to fraction form
    30,716.40/42,385.32 = 17,285.52/x
  3. Step 3: Cross multiply
    30,716.40x = 42,385.32 × 17,285.52
  4. Step 4: Simplify right side
    30,716.40x = 732,652,296.57
  5. Step 5: Solve for x
    x = 732,652,296.57/30,716.40
  6. Step 6: Final answer
    x = 23,852.15

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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.