Home / 39,045.95-53,883.33-21,140.96

Finding the Fourth Proportional to 39,045.95, 53,883.33 and 21,140.96

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Solution

The fourth proportional to 39,045.95, 53,883.33 and 21,140.96 is: 29,174.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,045.95 : 53,883.33 = 21,140.96 : x
  2. Step 2: Convert to fraction form
    39,045.95/53,883.33 = 21,140.96/x
  3. Step 3: Cross multiply
    39,045.95x = 53,883.33 × 21,140.96
  4. Step 4: Simplify right side
    39,045.95x = 1,139,145,054.78
  5. Step 5: Solve for x
    x = 1,139,145,054.78/39,045.95
  6. Step 6: Final answer
    x = 29,174.48

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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.