Home / 38,125.64-52,608.39-21,129.06

Finding the Fourth Proportional to 38,125.64, 52,608.39 and 21,129.06

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Solution

The fourth proportional to 38,125.64, 52,608.39 and 21,129.06 is: 29,155.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,125.64 : 52,608.39 = 21,129.06 : x
  2. Step 2: Convert to fraction form
    38,125.64/52,608.39 = 21,129.06/x
  3. Step 3: Cross multiply
    38,125.64x = 52,608.39 × 21,129.06
  4. Step 4: Simplify right side
    38,125.64x = 1,111,565,828.81
  5. Step 5: Solve for x
    x = 1,111,565,828.81/38,125.64
  6. Step 6: Final answer
    x = 29,155.34

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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.