Home / 30,731.66-42,409.77-17,303.12

Finding the Fourth Proportional to 30,731.66, 42,409.77 and 17,303.12

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Solution

The fourth proportional to 30,731.66, 42,409.77 and 17,303.12 is: 23,878.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,731.66 : 42,409.77 = 17,303.12 : x
  2. Step 2: Convert to fraction form
    30,731.66/42,409.77 = 17,303.12/x
  3. Step 3: Cross multiply
    30,731.66x = 42,409.77 × 17,303.12
  4. Step 4: Simplify right side
    30,731.66x = 733,821,339.48
  5. Step 5: Solve for x
    x = 733,821,339.48/30,731.66
  6. Step 6: Final answer
    x = 23,878.35

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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.