Home / 28,647.24-42,987.87-15,499.32

Finding the Fourth Proportional to 28,647.24, 42,987.87 and 15,499.32

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Solution

The fourth proportional to 28,647.24, 42,987.87 and 15,499.32 is: 23,258.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,647.24 : 42,987.87 = 15,499.32 : x
  2. Step 2: Convert to fraction form
    28,647.24/42,987.87 = 15,499.32/x
  3. Step 3: Cross multiply
    28,647.24x = 42,987.87 × 15,499.32
  4. Step 4: Simplify right side
    28,647.24x = 666,282,753.25
  5. Step 5: Solve for x
    x = 666,282,753.25/28,647.24
  6. Step 6: Final answer
    x = 23,258.18

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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.