Home / 39,060.60-53,903.64-21,155.68

Finding the Fourth Proportional to 39,060.60, 53,903.64 and 21,155.68

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Solution

The fourth proportional to 39,060.60, 53,903.64 and 21,155.68 is: 29,194.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,060.60 : 53,903.64 = 21,155.68 : x
  2. Step 2: Convert to fraction form
    39,060.60/53,903.64 = 21,155.68/x
  3. Step 3: Cross multiply
    39,060.60x = 53,903.64 × 21,155.68
  4. Step 4: Simplify right side
    39,060.60x = 1,140,368,158.68
  5. Step 5: Solve for x
    x = 1,140,368,158.68/39,060.60
  6. Step 6: Final answer
    x = 29,194.84

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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.