Home / 30,436.09-42,014.73-18,503.24

Finding the Fourth Proportional to 30,436.09, 42,014.73 and 18,503.24

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Solution

The fourth proportional to 30,436.09, 42,014.73 and 18,503.24 is: 25,542.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,436.09 : 42,014.73 = 18,503.24 : x
  2. Step 2: Convert to fraction form
    30,436.09/42,014.73 = 18,503.24/x
  3. Step 3: Cross multiply
    30,436.09x = 42,014.73 × 18,503.24
  4. Step 4: Simplify right side
    30,436.09x = 777,408,492.04
  5. Step 5: Solve for x
    x = 777,408,492.04/30,436.09
  6. Step 6: Final answer
    x = 25,542.33

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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.