Home / 28,454.48-42,670.32-11,803.20

Finding the Fourth Proportional to 28,454.48, 42,670.32 and 11,803.20

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Solution

The fourth proportional to 28,454.48, 42,670.32 and 11,803.20 is: 17,700.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,454.48 : 42,670.32 = 11,803.20 : x
  2. Step 2: Convert to fraction form
    28,454.48/42,670.32 = 11,803.20/x
  3. Step 3: Cross multiply
    28,454.48x = 42,670.32 × 11,803.20
  4. Step 4: Simplify right side
    28,454.48x = 503,646,321.02
  5. Step 5: Solve for x
    x = 503,646,321.02/28,454.48
  6. Step 6: Final answer
    x = 17,700.07

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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.