Home / 39,004.04-53,825.40-21,099.08

Finding the Fourth Proportional to 39,004.04, 53,825.40 and 21,099.08

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Solution

The fourth proportional to 39,004.04, 53,825.40 and 21,099.08 is: 29,116.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,004.04 : 53,825.40 = 21,099.08 : x
  2. Step 2: Convert to fraction form
    39,004.04/53,825.40 = 21,099.08/x
  3. Step 3: Cross multiply
    39,004.04x = 53,825.40 × 21,099.08
  4. Step 4: Simplify right side
    39,004.04x = 1,135,666,420.63
  5. Step 5: Solve for x
    x = 1,135,666,420.63/39,004.04
  6. Step 6: Final answer
    x = 29,116.64

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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.