Home / 39,875.01-55,025.46-21,969.60

Finding the Fourth Proportional to 39,875.01, 55,025.46 and 21,969.60

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Solution

The fourth proportional to 39,875.01, 55,025.46 and 21,969.60 is: 30,316.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,875.01 : 55,025.46 = 21,969.60 : x
  2. Step 2: Convert to fraction form
    39,875.01/55,025.46 = 21,969.60/x
  3. Step 3: Cross multiply
    39,875.01x = 55,025.46 × 21,969.60
  4. Step 4: Simplify right side
    39,875.01x = 1,208,887,346.02
  5. Step 5: Solve for x
    x = 1,208,887,346.02/39,875.01
  6. Step 6: Final answer
    x = 30,316.92

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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.