Home / 30,639.61-45,894.78-14,013.62

Finding the Fourth Proportional to 30,639.61, 45,894.78 and 14,013.62

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Solution

The fourth proportional to 30,639.61, 45,894.78 and 14,013.62 is: 20,990.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,639.61 : 45,894.78 = 14,013.62 : x
  2. Step 2: Convert to fraction form
    30,639.61/45,894.78 = 14,013.62/x
  3. Step 3: Cross multiply
    30,639.61x = 45,894.78 × 14,013.62
  4. Step 4: Simplify right side
    30,639.61x = 643,151,777.43
  5. Step 5: Solve for x
    x = 643,151,777.43/30,639.61
  6. Step 6: Final answer
    x = 20,990.86

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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.