Home / 20,899.53-31,332.80-10,362.29

Finding the Fourth Proportional to 20,899.53, 31,332.80 and 10,362.29

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Solution

The fourth proportional to 20,899.53, 31,332.80 and 10,362.29 is: 15,535.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,899.53 : 31,332.80 = 10,362.29 : x
  2. Step 2: Convert to fraction form
    20,899.53/31,332.80 = 10,362.29/x
  3. Step 3: Cross multiply
    20,899.53x = 31,332.80 × 10,362.29
  4. Step 4: Simplify right side
    20,899.53x = 324,679,429.35
  5. Step 5: Solve for x
    x = 324,679,429.35/20,899.53
  6. Step 6: Final answer
    x = 15,535.25

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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.