Home / 21,070.58-29,081.48-13,526.44

Finding the Fourth Proportional to 21,070.58, 29,081.48 and 13,526.44

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Solution

The fourth proportional to 21,070.58, 29,081.48 and 13,526.44 is: 18,669.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,070.58 : 29,081.48 = 13,526.44 : x
  2. Step 2: Convert to fraction form
    21,070.58/29,081.48 = 13,526.44/x
  3. Step 3: Cross multiply
    21,070.58x = 29,081.48 × 13,526.44
  4. Step 4: Simplify right side
    21,070.58x = 393,368,993.66
  5. Step 5: Solve for x
    x = 393,368,993.66/21,070.58
  6. Step 6: Final answer
    x = 18,669.11

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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.