Home / 30,019.24-45,041.10-12,485.80

Finding the Fourth Proportional to 30,019.24, 45,041.10 and 12,485.80

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Solution

The fourth proportional to 30,019.24, 45,041.10 and 12,485.80 is: 18,733.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,019.24 : 45,041.10 = 12,485.80 : x
  2. Step 2: Convert to fraction form
    30,019.24/45,041.10 = 12,485.80/x
  3. Step 3: Cross multiply
    30,019.24x = 45,041.10 × 12,485.80
  4. Step 4: Simplify right side
    30,019.24x = 562,374,166.38
  5. Step 5: Solve for x
    x = 562,374,166.38/30,019.24
  6. Step 6: Final answer
    x = 18,733.79

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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.