Home / 39,804.17-54,931.10-21,899.93

Finding the Fourth Proportional to 39,804.17, 54,931.10 and 21,899.93

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Solution

The fourth proportional to 39,804.17, 54,931.10 and 21,899.93 is: 30,222.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,804.17 : 54,931.10 = 21,899.93 : x
  2. Step 2: Convert to fraction form
    39,804.17/54,931.10 = 21,899.93/x
  3. Step 3: Cross multiply
    39,804.17x = 54,931.10 × 21,899.93
  4. Step 4: Simplify right side
    39,804.17x = 1,202,986,860.67
  5. Step 5: Solve for x
    x = 1,202,986,860.67/39,804.17
  6. Step 6: Final answer
    x = 30,222.64

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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.