Home / 31,333.03-47,015.71-20,810.32

Finding the Fourth Proportional to 31,333.03, 47,015.71 and 20,810.32

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Solution

The fourth proportional to 31,333.03, 47,015.71 and 20,810.32 is: 31,226.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,333.03 : 47,015.71 = 20,810.32 : x
  2. Step 2: Convert to fraction form
    31,333.03/47,015.71 = 20,810.32/x
  3. Step 3: Cross multiply
    31,333.03x = 47,015.71 × 20,810.32
  4. Step 4: Simplify right side
    31,333.03x = 978,411,800.56
  5. Step 5: Solve for x
    x = 978,411,800.56/31,333.03
  6. Step 6: Final answer
    x = 31,226.21

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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.