Home / 39,281.94-58,903.47-20,559.06

Finding the Fourth Proportional to 39,281.94, 58,903.47 and 20,559.06

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Solution

The fourth proportional to 39,281.94, 58,903.47 and 20,559.06 is: 30,828.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,281.94 : 58,903.47 = 20,559.06 : x
  2. Step 2: Convert to fraction form
    39,281.94/58,903.47 = 20,559.06/x
  3. Step 3: Cross multiply
    39,281.94x = 58,903.47 × 20,559.06
  4. Step 4: Simplify right side
    39,281.94x = 1,210,999,973.94
  5. Step 5: Solve for x
    x = 1,210,999,973.94/39,281.94
  6. Step 6: Final answer
    x = 30,828.42

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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.