Home / 39,570.50-54,607.30-21,666.60

Finding the Fourth Proportional to 39,570.50, 54,607.30 and 21,666.60

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Solution

The fourth proportional to 39,570.50, 54,607.30 and 21,666.60 is: 29,899.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,570.50 : 54,607.30 = 21,666.60 : x
  2. Step 2: Convert to fraction form
    39,570.50/54,607.30 = 21,666.60/x
  3. Step 3: Cross multiply
    39,570.50x = 54,607.30 × 21,666.60
  4. Step 4: Simplify right side
    39,570.50x = 1,183,154,472.01
  5. Step 5: Solve for x
    x = 1,183,154,472.01/39,570.50
  6. Step 6: Final answer
    x = 29,899.91

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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.