Home / 39,570.72-54,607.60-21,666.84

Finding the Fourth Proportional to 39,570.72, 54,607.60 and 21,666.84

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Solution

The fourth proportional to 39,570.72, 54,607.60 and 21,666.84 is: 29,900.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,570.72 : 54,607.60 = 21,666.84 : x
  2. Step 2: Convert to fraction form
    39,570.72/54,607.60 = 21,666.84/x
  3. Step 3: Cross multiply
    39,570.72x = 54,607.60 × 21,666.84
  4. Step 4: Simplify right side
    39,570.72x = 1,183,173,858.95
  5. Step 5: Solve for x
    x = 1,183,173,858.95/39,570.72
  6. Step 6: Final answer
    x = 29,900.24

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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.