Home / 28,465.48-39,283.14-15,891.04

Finding the Fourth Proportional to 28,465.48, 39,283.14 and 15,891.04

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Solution

The fourth proportional to 28,465.48, 39,283.14 and 15,891.04 is: 21,930.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,465.48 : 39,283.14 = 15,891.04 : x
  2. Step 2: Convert to fraction form
    28,465.48/39,283.14 = 15,891.04/x
  3. Step 3: Cross multiply
    28,465.48x = 39,283.14 × 15,891.04
  4. Step 4: Simplify right side
    28,465.48x = 624,249,949.07
  5. Step 5: Solve for x
    x = 624,249,949.07/28,465.48
  6. Step 6: Final answer
    x = 21,930.07

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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.