Home / 39,130.37-53,999.50-21,224.99

Finding the Fourth Proportional to 39,130.37, 53,999.50 and 21,224.99

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Solution

The fourth proportional to 39,130.37, 53,999.50 and 21,224.99 is: 29,290.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,130.37 : 53,999.50 = 21,224.99 : x
  2. Step 2: Convert to fraction form
    39,130.37/53,999.50 = 21,224.99/x
  3. Step 3: Cross multiply
    39,130.37x = 53,999.50 × 21,224.99
  4. Step 4: Simplify right side
    39,130.37x = 1,146,138,847.51
  5. Step 5: Solve for x
    x = 1,146,138,847.51/39,130.37
  6. Step 6: Final answer
    x = 29,290.26

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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.