Home / 39,038.86-53,873.65-21,133.87

Finding the Fourth Proportional to 39,038.86, 53,873.65 and 21,133.87

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Solution

The fourth proportional to 39,038.86, 53,873.65 and 21,133.87 is: 29,164.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,038.86 : 53,873.65 = 21,133.87 : x
  2. Step 2: Convert to fraction form
    39,038.86/53,873.65 = 21,133.87/x
  3. Step 3: Cross multiply
    39,038.86x = 53,873.65 × 21,133.87
  4. Step 4: Simplify right side
    39,038.86x = 1,138,558,340.49
  5. Step 5: Solve for x
    x = 1,138,558,340.49/39,038.86
  6. Step 6: Final answer
    x = 29,164.74

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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.