Home / 31,205.31-46,807.97-10,428.81

Finding the Fourth Proportional to 31,205.31, 46,807.97 and 10,428.81

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Solution

The fourth proportional to 31,205.31, 46,807.97 and 10,428.81 is: 15,643.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,205.31 : 46,807.97 = 10,428.81 : x
  2. Step 2: Convert to fraction form
    31,205.31/46,807.97 = 10,428.81/x
  3. Step 3: Cross multiply
    31,205.31x = 46,807.97 × 10,428.81
  4. Step 4: Simplify right side
    31,205.31x = 488,151,425.62
  5. Step 5: Solve for x
    x = 488,151,425.62/31,205.31
  6. Step 6: Final answer
    x = 15,643.22

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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.