Home / 38,346-52,917.48-21,579.36

Finding the Fourth Proportional to 38,346, 52,917.48 and 21,579.36

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Solution

The fourth proportional to 38,346, 52,917.48 and 21,579.36 is: 29,779.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,346 : 52,917.48 = 21,579.36 : x
  2. Step 2: Convert to fraction form
    38,346/52,917.48 = 21,579.36/x
  3. Step 3: Cross multiply
    38,346x = 52,917.48 × 21,579.36
  4. Step 4: Simplify right side
    38,346x = 1,141,925,351.21
  5. Step 5: Solve for x
    x = 1,141,925,351.21/38,346
  6. Step 6: Final answer
    x = 29,779.52

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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.