Home / 28,590.40-39,454.32-16,015.60

Finding the Fourth Proportional to 28,590.40, 39,454.32 and 16,015.60

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Solution

The fourth proportional to 28,590.40, 39,454.32 and 16,015.60 is: 22,101.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,590.40 : 39,454.32 = 16,015.60 : x
  2. Step 2: Convert to fraction form
    28,590.40/39,454.32 = 16,015.60/x
  3. Step 3: Cross multiply
    28,590.40x = 39,454.32 × 16,015.60
  4. Step 4: Simplify right side
    28,590.40x = 631,884,607.39
  5. Step 5: Solve for x
    x = 631,884,607.39/28,590.40
  6. Step 6: Final answer
    x = 22,101.29

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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.