Home / 28,329.22-39,093.48-15,582.40

Finding the Fourth Proportional to 28,329.22, 39,093.48 and 15,582.40

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Solution

The fourth proportional to 28,329.22, 39,093.48 and 15,582.40 is: 21,503.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,329.22 : 39,093.48 = 15,582.40 : x
  2. Step 2: Convert to fraction form
    28,329.22/39,093.48 = 15,582.40/x
  3. Step 3: Cross multiply
    28,329.22x = 39,093.48 × 15,582.40
  4. Step 4: Simplify right side
    28,329.22x = 609,170,242.75
  5. Step 5: Solve for x
    x = 609,170,242.75/28,329.22
  6. Step 6: Final answer
    x = 21,503.25

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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.