Home / 20,561.36-30,859.32-16,483.28

Finding the Fourth Proportional to 20,561.36, 30,859.32 and 16,483.28

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Solution

The fourth proportional to 20,561.36, 30,859.32 and 16,483.28 is: 24,738.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,561.36 : 30,859.32 = 16,483.28 : x
  2. Step 2: Convert to fraction form
    20,561.36/30,859.32 = 16,483.28/x
  3. Step 3: Cross multiply
    20,561.36x = 30,859.32 × 16,483.28
  4. Step 4: Simplify right side
    20,561.36x = 508,662,812.17
  5. Step 5: Solve for x
    x = 508,662,812.17/20,561.36
  6. Step 6: Final answer
    x = 24,738.77

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1.5x scale

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.