Home / 21,378.90-32,075.27-10,284.14

Finding the Fourth Proportional to 21,378.90, 32,075.27 and 10,284.14

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Solution

The fourth proportional to 21,378.90, 32,075.27 and 10,284.14 is: 15,429.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,378.90 : 32,075.27 = 10,284.14 : x
  2. Step 2: Convert to fraction form
    21,378.90/32,075.27 = 10,284.14/x
  3. Step 3: Cross multiply
    21,378.90x = 32,075.27 × 10,284.14
  4. Step 4: Simplify right side
    21,378.90x = 329,866,567.22
  5. Step 5: Solve for x
    x = 329,866,567.22/21,378.90
  6. Step 6: Final answer
    x = 15,429.54

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.