Home / 22,421.05-30,953.48-13,470.75

Finding the Fourth Proportional to 22,421.05, 30,953.48 and 13,470.75

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Solution

The fourth proportional to 22,421.05, 30,953.48 and 13,470.75 is: 18,597.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,421.05 : 30,953.48 = 13,470.75 : x
  2. Step 2: Convert to fraction form
    22,421.05/30,953.48 = 13,470.75/x
  3. Step 3: Cross multiply
    22,421.05x = 30,953.48 × 13,470.75
  4. Step 4: Simplify right side
    22,421.05x = 416,966,523.36
  5. Step 5: Solve for x
    x = 416,966,523.36/22,421.05
  6. Step 6: Final answer
    x = 18,597.10

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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.