Home / 30,785.28-42,482.32-17,356.48

Finding the Fourth Proportional to 30,785.28, 42,482.32 and 17,356.48

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Solution

The fourth proportional to 30,785.28, 42,482.32 and 17,356.48 is: 23,951.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,785.28 : 42,482.32 = 17,356.48 : x
  2. Step 2: Convert to fraction form
    30,785.28/42,482.32 = 17,356.48/x
  3. Step 3: Cross multiply
    30,785.28x = 42,482.32 × 17,356.48
  4. Step 4: Simplify right side
    30,785.28x = 737,343,537.43
  5. Step 5: Solve for x
    x = 737,343,537.43/30,785.28
  6. Step 6: Final answer
    x = 23,951.17

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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.