Home / 21,533.06-29,703.24-13,452.71

Finding the Fourth Proportional to 21,533.06, 29,703.24 and 13,452.71

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Solution

The fourth proportional to 21,533.06, 29,703.24 and 13,452.71 is: 18,556.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,533.06 : 29,703.24 = 13,452.71 : x
  2. Step 2: Convert to fraction form
    21,533.06/29,703.24 = 13,452.71/x
  3. Step 3: Cross multiply
    21,533.06x = 29,703.24 × 13,452.71
  4. Step 4: Simplify right side
    21,533.06x = 399,588,925.26
  5. Step 5: Solve for x
    x = 399,588,925.26/21,533.06
  6. Step 6: Final answer
    x = 18,556.99

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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.