Home / 22,560.32-31,133.28-12,624.32

Finding the Fourth Proportional to 22,560.32, 31,133.28 and 12,624.32

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Solution

The fourth proportional to 22,560.32, 31,133.28 and 12,624.32 is: 17,421.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,560.32 : 31,133.28 = 12,624.32 : x
  2. Step 2: Convert to fraction form
    22,560.32/31,133.28 = 12,624.32/x
  3. Step 3: Cross multiply
    22,560.32x = 31,133.28 × 12,624.32
  4. Step 4: Simplify right side
    22,560.32x = 393,036,489.37
  5. Step 5: Solve for x
    x = 393,036,489.37/22,560.32
  6. Step 6: Final answer
    x = 17,421.58

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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.