Home / 21,996.77-30,354.75-13,038.93

Finding the Fourth Proportional to 21,996.77, 30,354.75 and 13,038.93

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Solution

The fourth proportional to 21,996.77, 30,354.75 and 13,038.93 is: 17,993.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,996.77 : 30,354.75 = 13,038.93 : x
  2. Step 2: Convert to fraction form
    21,996.77/30,354.75 = 13,038.93/x
  3. Step 3: Cross multiply
    21,996.77x = 30,354.75 × 13,038.93
  4. Step 4: Simplify right side
    21,996.77x = 395,793,460.42
  5. Step 5: Solve for x
    x = 395,793,460.42/21,996.77
  6. Step 6: Final answer
    x = 17,993.26

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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.