Home / 22,275.90-30,743.40-13,783.65

Finding the Fourth Proportional to 22,275.90, 30,743.40 and 13,783.65

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Solution

The fourth proportional to 22,275.90, 30,743.40 and 13,783.65 is: 19,023.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,275.90 : 30,743.40 = 13,783.65 : x
  2. Step 2: Convert to fraction form
    22,275.90/30,743.40 = 13,783.65/x
  3. Step 3: Cross multiply
    22,275.90x = 30,743.40 × 13,783.65
  4. Step 4: Simplify right side
    22,275.90x = 423,756,265.41
  5. Step 5: Solve for x
    x = 423,756,265.41/22,275.90
  6. Step 6: Final answer
    x = 19,023.08

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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.