Home / 27,406.82-37,783.98-20,501.60

Finding the Fourth Proportional to 27,406.82, 37,783.98 and 20,501.60

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Solution

The fourth proportional to 27,406.82, 37,783.98 and 20,501.60 is: 28,264.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,406.82 : 37,783.98 = 20,501.60 : x
  2. Step 2: Convert to fraction form
    27,406.82/37,783.98 = 20,501.60/x
  3. Step 3: Cross multiply
    27,406.82x = 37,783.98 × 20,501.60
  4. Step 4: Simplify right side
    27,406.82x = 774,631,855.45
  5. Step 5: Solve for x
    x = 774,631,855.45/27,406.82
  6. Step 6: Final answer
    x = 28,264.21

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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.