Home / 15,889.47-21,862.71-14,577.27

Finding the Fourth Proportional to 15,889.47, 21,862.71 and 14,577.27

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Solution

The fourth proportional to 15,889.47, 21,862.71 and 14,577.27 is: 20,057.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,889.47 : 21,862.71 = 14,577.27 : x
  2. Step 2: Convert to fraction form
    15,889.47/21,862.71 = 14,577.27/x
  3. Step 3: Cross multiply
    15,889.47x = 21,862.71 × 14,577.27
  4. Step 4: Simplify right side
    15,889.47x = 318,698,544.62
  5. Step 5: Solve for x
    x = 318,698,544.62/15,889.47
  6. Step 6: Final answer
    x = 20,057.22

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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.