Home / 21,605.80-29,829.77-17,636.35

Finding the Fourth Proportional to 21,605.80, 29,829.77 and 17,636.35

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Solution

The fourth proportional to 21,605.80, 29,829.77 and 17,636.35 is: 24,349.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,605.80 : 29,829.77 = 17,636.35 : x
  2. Step 2: Convert to fraction form
    21,605.80/29,829.77 = 17,636.35/x
  3. Step 3: Cross multiply
    21,605.80x = 29,829.77 × 17,636.35
  4. Step 4: Simplify right side
    21,605.80x = 526,088,264.14
  5. Step 5: Solve for x
    x = 526,088,264.14/21,605.80
  6. Step 6: Final answer
    x = 24,349.40

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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.