Home / 22,303.28-30,767.64-18,765.20

Finding the Fourth Proportional to 22,303.28, 30,767.64 and 18,765.20

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Solution

The fourth proportional to 22,303.28, 30,767.64 and 18,765.20 is: 25,886.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,303.28 : 30,767.64 = 18,765.20 : x
  2. Step 2: Convert to fraction form
    22,303.28/30,767.64 = 18,765.20/x
  3. Step 3: Cross multiply
    22,303.28x = 30,767.64 × 18,765.20
  4. Step 4: Simplify right side
    22,303.28x = 577,360,918.13
  5. Step 5: Solve for x
    x = 577,360,918.13/22,303.28
  6. Step 6: Final answer
    x = 25,886.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.