Home / 28,569.94-39,417.37-18,506.09

Finding the Fourth Proportional to 28,569.94, 39,417.37 and 18,506.09

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Solution

The fourth proportional to 28,569.94, 39,417.37 and 18,506.09 is: 25,532.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,569.94 : 39,417.37 = 18,506.09 : x
  2. Step 2: Convert to fraction form
    28,569.94/39,417.37 = 18,506.09/x
  3. Step 3: Cross multiply
    28,569.94x = 39,417.37 × 18,506.09
  4. Step 4: Simplify right side
    28,569.94x = 729,461,449.06
  5. Step 5: Solve for x
    x = 729,461,449.06/28,569.94
  6. Step 6: Final answer
    x = 25,532.48

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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.