Home / 21,036.51-31,564.08-11,173.41

Finding the Fourth Proportional to 21,036.51, 31,564.08 and 11,173.41

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Solution

The fourth proportional to 21,036.51, 31,564.08 and 11,173.41 is: 16,765.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,036.51 : 31,564.08 = 11,173.41 : x
  2. Step 2: Convert to fraction form
    21,036.51/31,564.08 = 11,173.41/x
  3. Step 3: Cross multiply
    21,036.51x = 31,564.08 × 11,173.41
  4. Step 4: Simplify right side
    21,036.51x = 352,678,407.11
  5. Step 5: Solve for x
    x = 352,678,407.11/21,036.51
  6. Step 6: Final answer
    x = 16,765.06

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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.