Home / 26,291.28-36,281.88-15,681.36

Finding the Fourth Proportional to 26,291.28, 36,281.88 and 15,681.36

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Solution

The fourth proportional to 26,291.28, 36,281.88 and 15,681.36 is: 21,640.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,291.28 : 36,281.88 = 15,681.36 : x
  2. Step 2: Convert to fraction form
    26,291.28/36,281.88 = 15,681.36/x
  3. Step 3: Cross multiply
    26,291.28x = 36,281.88 × 15,681.36
  4. Step 4: Simplify right side
    26,291.28x = 568,949,221.76
  5. Step 5: Solve for x
    x = 568,949,221.76/26,291.28
  6. Step 6: Final answer
    x = 21,640.23

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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.