Home / 38,789.28-53,525.32-21,795.48

Finding the Fourth Proportional to 38,789.28, 53,525.32 and 21,795.48

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Solution

The fourth proportional to 38,789.28, 53,525.32 and 21,795.48 is: 30,075.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,789.28 : 53,525.32 = 21,795.48 : x
  2. Step 2: Convert to fraction form
    38,789.28/53,525.32 = 21,795.48/x
  3. Step 3: Cross multiply
    38,789.28x = 53,525.32 × 21,795.48
  4. Step 4: Simplify right side
    38,789.28x = 1,166,610,041.55
  5. Step 5: Solve for x
    x = 1,166,610,041.55/38,789.28
  6. Step 6: Final answer
    x = 30,075.58

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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.