Home / 21,417.08-32,130.47-11,556.14

Finding the Fourth Proportional to 21,417.08, 32,130.47 and 11,556.14

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Solution

The fourth proportional to 21,417.08, 32,130.47 and 11,556.14 is: 17,336.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,417.08 : 32,130.47 = 11,556.14 : x
  2. Step 2: Convert to fraction form
    21,417.08/32,130.47 = 11,556.14/x
  3. Step 3: Cross multiply
    21,417.08x = 32,130.47 × 11,556.14
  4. Step 4: Simplify right side
    21,417.08x = 371,304,077.82
  5. Step 5: Solve for x
    x = 371,304,077.82/21,417.08
  6. Step 6: Final answer
    x = 17,336.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.