Home / 42,507.97-63,762.08-20,316.31

Finding the Fourth Proportional to 42,507.97, 63,762.08 and 20,316.31

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Solution

The fourth proportional to 42,507.97, 63,762.08 and 20,316.31 is: 30,474.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,507.97 : 63,762.08 = 20,316.31 : x
  2. Step 2: Convert to fraction form
    42,507.97/63,762.08 = 20,316.31/x
  3. Step 3: Cross multiply
    42,507.97x = 63,762.08 × 20,316.31
  4. Step 4: Simplify right side
    42,507.97x = 1,295,410,183.52
  5. Step 5: Solve for x
    x = 1,295,410,183.52/42,507.97
  6. Step 6: Final answer
    x = 30,474.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.