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Finding the Fourth Proportional to 47,000.73, 70,484.67 and 18,913.50

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Solution

The fourth proportional to 47,000.73, 70,484.67 and 18,913.50 is: 28,363.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,000.73 : 70,484.67 = 18,913.50 : x
  2. Step 2: Convert to fraction form
    47,000.73/70,484.67 = 18,913.50/x
  3. Step 3: Cross multiply
    47,000.73x = 70,484.67 × 18,913.50
  4. Step 4: Simplify right side
    47,000.73x = 1,333,111,359.05
  5. Step 5: Solve for x
    x = 1,333,111,359.05/47,000.73
  6. Step 6: Final answer
    x = 28,363.63

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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.