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Finding the Fourth Proportional to 23,888.64, 32,969 and 13,279.28

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Solution

The fourth proportional to 23,888.64, 32,969 and 13,279.28 is: 18,326.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,888.64 : 32,969 = 13,279.28 : x
  2. Step 2: Convert to fraction form
    23,888.64/32,969 = 13,279.28/x
  3. Step 3: Cross multiply
    23,888.64x = 32,969 × 13,279.28
  4. Step 4: Simplify right side
    23,888.64x = 437,804,582.32
  5. Step 5: Solve for x
    x = 437,804,582.32/23,888.64
  6. Step 6: Final answer
    x = 18,326.89

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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.