Home / 15,762.24-21,594.18-15,171.36

Finding the Fourth Proportional to 15,762.24, 21,594.18 and 15,171.36

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Solution

The fourth proportional to 15,762.24, 21,594.18 and 15,171.36 is: 20,784.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,762.24 : 21,594.18 = 15,171.36 : x
  2. Step 2: Convert to fraction form
    15,762.24/21,594.18 = 15,171.36/x
  3. Step 3: Cross multiply
    15,762.24x = 21,594.18 × 15,171.36
  4. Step 4: Simplify right side
    15,762.24x = 327,613,078.68
  5. Step 5: Solve for x
    x = 327,613,078.68/15,762.24
  6. Step 6: Final answer
    x = 20,784.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.