Home / 57,865.08-86,804.61-20,417.46

Finding the Fourth Proportional to 57,865.08, 86,804.61 and 20,417.46

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Solution

The fourth proportional to 57,865.08, 86,804.61 and 20,417.46 is: 30,628.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,865.08 : 86,804.61 = 20,417.46 : x
  2. Step 2: Convert to fraction form
    57,865.08/86,804.61 = 20,417.46/x
  3. Step 3: Cross multiply
    57,865.08x = 86,804.61 × 20,417.46
  4. Step 4: Simplify right side
    57,865.08x = 1,772,329,550.40
  5. Step 5: Solve for x
    x = 1,772,329,550.40/57,865.08
  6. Step 6: Final answer
    x = 30,628.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.