Home / 23,189.78-32,001.95-12,579.39

Finding the Fourth Proportional to 23,189.78, 32,001.95 and 12,579.39

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Solution

The fourth proportional to 23,189.78, 32,001.95 and 12,579.39 is: 17,359.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,189.78 : 32,001.95 = 12,579.39 : x
  2. Step 2: Convert to fraction form
    23,189.78/32,001.95 = 12,579.39/x
  3. Step 3: Cross multiply
    23,189.78x = 32,001.95 × 12,579.39
  4. Step 4: Simplify right side
    23,189.78x = 402,565,009.81
  5. Step 5: Solve for x
    x = 402,565,009.81/23,189.78
  6. Step 6: Final answer
    x = 17,359.59

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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.