Home / 39,060.48-53,903.16-21,155.43

Finding the Fourth Proportional to 39,060.48, 53,903.16 and 21,155.43

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Solution

The fourth proportional to 39,060.48, 53,903.16 and 21,155.43 is: 29,194.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,060.48 : 53,903.16 = 21,155.43 : x
  2. Step 2: Convert to fraction form
    39,060.48/53,903.16 = 21,155.43/x
  3. Step 3: Cross multiply
    39,060.48x = 53,903.16 × 21,155.43
  4. Step 4: Simplify right side
    39,060.48x = 1,140,344,528.16
  5. Step 5: Solve for x
    x = 1,140,344,528.16/39,060.48
  6. Step 6: Final answer
    x = 29,194.33

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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.