Home / 30,211.61-41,707.17-18,887.40

Finding the Fourth Proportional to 30,211.61, 41,707.17 and 18,887.40

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Solution

The fourth proportional to 30,211.61, 41,707.17 and 18,887.40 is: 26,074.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,211.61 : 41,707.17 = 18,887.40 : x
  2. Step 2: Convert to fraction form
    30,211.61/41,707.17 = 18,887.40/x
  3. Step 3: Cross multiply
    30,211.61x = 41,707.17 × 18,887.40
  4. Step 4: Simplify right side
    30,211.61x = 787,740,002.66
  5. Step 5: Solve for x
    x = 787,740,002.66/30,211.61
  6. Step 6: Final answer
    x = 26,074.08

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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.