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Finding the Fourth Proportional to 30,423.16, 45,639.06 and 9,364.95

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Solution

The fourth proportional to 30,423.16, 45,639.06 and 9,364.95 is: 14,048.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,423.16 : 45,639.06 = 9,364.95 : x
  2. Step 2: Convert to fraction form
    30,423.16/45,639.06 = 9,364.95/x
  3. Step 3: Cross multiply
    30,423.16x = 45,639.06 × 9,364.95
  4. Step 4: Simplify right side
    30,423.16x = 427,407,592.05
  5. Step 5: Solve for x
    x = 427,407,592.05/30,423.16
  6. Step 6: Final answer
    x = 14,048.76

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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.