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Finding the Fourth Proportional to 30,300.84, 45,435.29 and 10,303.47

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Solution

The fourth proportional to 30,300.84, 45,435.29 and 10,303.47 is: 15,449.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,300.84 : 45,435.29 = 10,303.47 : x
  2. Step 2: Convert to fraction form
    30,300.84/45,435.29 = 10,303.47/x
  3. Step 3: Cross multiply
    30,300.84x = 45,435.29 × 10,303.47
  4. Step 4: Simplify right side
    30,300.84x = 468,141,095.94
  5. Step 5: Solve for x
    x = 468,141,095.94/30,300.84
  6. Step 6: Final answer
    x = 15,449.77

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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.