Home / 20,762.02-31,119.81-10,902.34

Finding the Fourth Proportional to 20,762.02, 31,119.81 and 10,902.34

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Solution

The fourth proportional to 20,762.02, 31,119.81 and 10,902.34 is: 16,341.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,762.02 : 31,119.81 = 10,902.34 : x
  2. Step 2: Convert to fraction form
    20,762.02/31,119.81 = 10,902.34/x
  3. Step 3: Cross multiply
    20,762.02x = 31,119.81 × 10,902.34
  4. Step 4: Simplify right side
    20,762.02x = 339,278,749.36
  5. Step 5: Solve for x
    x = 339,278,749.36/20,762.02
  6. Step 6: Final answer
    x = 16,341.32

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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.