Home / 21,899.69-32,870.29-13,554.46

Finding the Fourth Proportional to 21,899.69, 32,870.29 and 13,554.46

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Solution

The fourth proportional to 21,899.69, 32,870.29 and 13,554.46 is: 20,344.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,899.69 : 32,870.29 = 13,554.46 : x
  2. Step 2: Convert to fraction form
    21,899.69/32,870.29 = 13,554.46/x
  3. Step 3: Cross multiply
    21,899.69x = 32,870.29 × 13,554.46
  4. Step 4: Simplify right side
    21,899.69x = 445,539,030.99
  5. Step 5: Solve for x
    x = 445,539,030.99/21,899.69
  6. Step 6: Final answer
    x = 20,344.54

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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.