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Finding the Fourth Proportional to 23,561.78, 35,347.53 and 7,979

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Solution

The fourth proportional to 23,561.78, 35,347.53 and 7,979 is: 11,970.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,561.78 : 35,347.53 = 7,979 : x
  2. Step 2: Convert to fraction form
    23,561.78/35,347.53 = 7,979/x
  3. Step 3: Cross multiply
    23,561.78x = 35,347.53 × 7,979
  4. Step 4: Simplify right side
    23,561.78x = 282,037,941.87
  5. Step 5: Solve for x
    x = 282,037,941.87/23,561.78
  6. Step 6: Final answer
    x = 11,970.15

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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.