Home / 30,689.46-46,025.10-13,155.12

Finding the Fourth Proportional to 30,689.46, 46,025.10 and 13,155.12

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Solution

The fourth proportional to 30,689.46, 46,025.10 and 13,155.12 is: 19,728.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,689.46 : 46,025.10 = 13,155.12 : x
  2. Step 2: Convert to fraction form
    30,689.46/46,025.10 = 13,155.12/x
  3. Step 3: Cross multiply
    30,689.46x = 46,025.10 × 13,155.12
  4. Step 4: Simplify right side
    30,689.46x = 605,465,713.51
  5. Step 5: Solve for x
    x = 605,465,713.51/30,689.46
  6. Step 6: Final answer
    x = 19,728.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.