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Finding the Fourth Proportional to 30,503.70, 45,774.99 and 12,973.50

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Solution

The fourth proportional to 30,503.70, 45,774.99 and 12,973.50 is: 19,468.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,503.70 : 45,774.99 = 12,973.50 : x
  2. Step 2: Convert to fraction form
    30,503.70/45,774.99 = 12,973.50/x
  3. Step 3: Cross multiply
    30,503.70x = 45,774.99 × 12,973.50
  4. Step 4: Simplify right side
    30,503.70x = 593,861,832.77
  5. Step 5: Solve for x
    x = 593,861,832.77/30,503.70
  6. Step 6: Final answer
    x = 19,468.52

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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.