Home / 30,655.26-42,303.06-18,738.54

Finding the Fourth Proportional to 30,655.26, 42,303.06 and 18,738.54

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Solution

The fourth proportional to 30,655.26, 42,303.06 and 18,738.54 is: 25,858.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,655.26 : 42,303.06 = 18,738.54 : x
  2. Step 2: Convert to fraction form
    30,655.26/42,303.06 = 18,738.54/x
  3. Step 3: Cross multiply
    30,655.26x = 42,303.06 × 18,738.54
  4. Step 4: Simplify right side
    30,655.26x = 792,697,581.93
  5. Step 5: Solve for x
    x = 792,697,581.93/30,655.26
  6. Step 6: Final answer
    x = 25,858.45

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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.