Home / 20,224.32-30,332.16-9,130.56

Finding the Fourth Proportional to 20,224.32, 30,332.16 and 9,130.56

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Solution

The fourth proportional to 20,224.32, 30,332.16 and 9,130.56 is: 13,693.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,224.32 : 30,332.16 = 9,130.56 : x
  2. Step 2: Convert to fraction form
    20,224.32/30,332.16 = 9,130.56/x
  3. Step 3: Cross multiply
    20,224.32x = 30,332.16 × 9,130.56
  4. Step 4: Simplify right side
    20,224.32x = 276,949,606.81
  5. Step 5: Solve for x
    x = 276,949,606.81/20,224.32
  6. Step 6: Final answer
    x = 13,693.89

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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.