Home / 39,060.67-53,903.79-21,155.83

Finding the Fourth Proportional to 39,060.67, 53,903.79 and 21,155.83

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Solution

The fourth proportional to 39,060.67, 53,903.79 and 21,155.83 is: 29,195.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,060.67 : 53,903.79 = 21,155.83 : x
  2. Step 2: Convert to fraction form
    39,060.67/53,903.79 = 21,155.83/x
  3. Step 3: Cross multiply
    39,060.67x = 53,903.79 × 21,155.83
  4. Step 4: Simplify right side
    39,060.67x = 1,140,379,417.60
  5. Step 5: Solve for x
    x = 1,140,379,417.60/39,060.67
  6. Step 6: Final answer
    x = 29,195.08

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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.