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Finding the Fourth Proportional to 21,813.77, 32,713.72 and 7,019.25

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Solution

The fourth proportional to 21,813.77, 32,713.72 and 7,019.25 is: 10,526.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,813.77 : 32,713.72 = 7,019.25 : x
  2. Step 2: Convert to fraction form
    21,813.77/32,713.72 = 7,019.25/x
  3. Step 3: Cross multiply
    21,813.77x = 32,713.72 × 7,019.25
  4. Step 4: Simplify right side
    21,813.77x = 229,625,779.11
  5. Step 5: Solve for x
    x = 229,625,779.11/21,813.77
  6. Step 6: Final answer
    x = 10,526.64

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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.