Home / 19,985.86-27,571.35-11,597.50

Finding the Fourth Proportional to 19,985.86, 27,571.35 and 11,597.50

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Solution

The fourth proportional to 19,985.86, 27,571.35 and 11,597.50 is: 15,999.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,985.86 : 27,571.35 = 11,597.50 : x
  2. Step 2: Convert to fraction form
    19,985.86/27,571.35 = 11,597.50/x
  3. Step 3: Cross multiply
    19,985.86x = 27,571.35 × 11,597.50
  4. Step 4: Simplify right side
    19,985.86x = 319,758,731.63
  5. Step 5: Solve for x
    x = 319,758,731.63/19,985.86
  6. Step 6: Final answer
    x = 15,999.25

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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.