Home / 31,205.25-46,807.88-10,428.75

Finding the Fourth Proportional to 31,205.25, 46,807.88 and 10,428.75

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Solution

The fourth proportional to 31,205.25, 46,807.88 and 10,428.75 is: 15,643.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,205.25 : 46,807.88 = 10,428.75 : x
  2. Step 2: Convert to fraction form
    31,205.25/46,807.88 = 10,428.75/x
  3. Step 3: Cross multiply
    31,205.25x = 46,807.88 × 10,428.75
  4. Step 4: Simplify right side
    31,205.25x = 488,147,626.41
  5. Step 5: Solve for x
    x = 488,147,626.41/31,205.25
  6. Step 6: Final answer
    x = 15,643.13

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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.