Home / 21,378.89-32,075.26-10,284.14

Finding the Fourth Proportional to 21,378.89, 32,075.26 and 10,284.14

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Solution

The fourth proportional to 21,378.89, 32,075.26 and 10,284.14 is: 15,429.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,378.89 : 32,075.26 = 10,284.14 : x
  2. Step 2: Convert to fraction form
    21,378.89/32,075.26 = 10,284.14/x
  3. Step 3: Cross multiply
    21,378.89x = 32,075.26 × 10,284.14
  4. Step 4: Simplify right side
    21,378.89x = 329,866,518.85
  5. Step 5: Solve for x
    x = 329,866,518.85/21,378.89
  6. Step 6: Final answer
    x = 15,429.54

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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.