Home / 28,362.90-42,479.60-13,582.26

Finding the Fourth Proportional to 28,362.90, 42,479.60 and 13,582.26

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Solution

The fourth proportional to 28,362.90, 42,479.60 and 13,582.26 is: 20,342.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,362.90 : 42,479.60 = 13,582.26 : x
  2. Step 2: Convert to fraction form
    28,362.90/42,479.60 = 13,582.26/x
  3. Step 3: Cross multiply
    28,362.90x = 42,479.60 × 13,582.26
  4. Step 4: Simplify right side
    28,362.90x = 576,968,971.90
  5. Step 5: Solve for x
    x = 576,968,971.90/28,362.90
  6. Step 6: Final answer
    x = 20,342.38

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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.