Home / 38,004.12-52,445.40-21,009.60

Finding the Fourth Proportional to 38,004.12, 52,445.40 and 21,009.60

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Solution

The fourth proportional to 38,004.12, 52,445.40 and 21,009.60 is: 28,993.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,004.12 : 52,445.40 = 21,009.60 : x
  2. Step 2: Convert to fraction form
    38,004.12/52,445.40 = 21,009.60/x
  3. Step 3: Cross multiply
    38,004.12x = 52,445.40 × 21,009.60
  4. Step 4: Simplify right side
    38,004.12x = 1,101,856,875.84
  5. Step 5: Solve for x
    x = 1,101,856,875.84/38,004.12
  6. Step 6: Final answer
    x = 28,993.09

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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.