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Finding the Fourth Proportional to 30,477.68, 45,681.82 and 19,084.93

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Solution

The fourth proportional to 30,477.68, 45,681.82 and 19,084.93 is: 28,605.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,477.68 : 45,681.82 = 19,084.93 : x
  2. Step 2: Convert to fraction form
    30,477.68/45,681.82 = 19,084.93/x
  3. Step 3: Cross multiply
    30,477.68x = 45,681.82 × 19,084.93
  4. Step 4: Simplify right side
    30,477.68x = 871,834,336.97
  5. Step 5: Solve for x
    x = 871,834,336.97/30,477.68
  6. Step 6: Final answer
    x = 28,605.67

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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.