Home / 28,483.99-39,307.68-15,738.03

Finding the Fourth Proportional to 28,483.99, 39,307.68 and 15,738.03

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Solution

The fourth proportional to 28,483.99, 39,307.68 and 15,738.03 is: 21,718.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,483.99 : 39,307.68 = 15,738.03 : x
  2. Step 2: Convert to fraction form
    28,483.99/39,307.68 = 15,738.03/x
  3. Step 3: Cross multiply
    28,483.99x = 39,307.68 × 15,738.03
  4. Step 4: Simplify right side
    28,483.99x = 618,625,447.07
  5. Step 5: Solve for x
    x = 618,625,447.07/28,483.99
  6. Step 6: Final answer
    x = 21,718.36

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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.