Home / 22,435.36-30,956.16-15,359.20

Finding the Fourth Proportional to 22,435.36, 30,956.16 and 15,359.20

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Solution

The fourth proportional to 22,435.36, 30,956.16 and 15,359.20 is: 21,192.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,435.36 : 30,956.16 = 15,359.20 : x
  2. Step 2: Convert to fraction form
    22,435.36/30,956.16 = 15,359.20/x
  3. Step 3: Cross multiply
    22,435.36x = 30,956.16 × 15,359.20
  4. Step 4: Simplify right side
    22,435.36x = 475,461,852.67
  5. Step 5: Solve for x
    x = 475,461,852.67/22,435.36
  6. Step 6: Final answer
    x = 21,192.52

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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.