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Finding the Fourth Proportional to 30,609.65, 45,914.40 and 10,888.98

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Solution

The fourth proportional to 30,609.65, 45,914.40 and 10,888.98 is: 16,333.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,609.65 : 45,914.40 = 10,888.98 : x
  2. Step 2: Convert to fraction form
    30,609.65/45,914.40 = 10,888.98/x
  3. Step 3: Cross multiply
    30,609.65x = 45,914.40 × 10,888.98
  4. Step 4: Simplify right side
    30,609.65x = 499,960,983.31
  5. Step 5: Solve for x
    x = 499,960,983.31/30,609.65
  6. Step 6: Final answer
    x = 16,333.45

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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.