Home / 30,313.61-45,442.28-15,489.84

Finding the Fourth Proportional to 30,313.61, 45,442.28 and 15,489.84

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Solution

The fourth proportional to 30,313.61, 45,442.28 and 15,489.84 is: 23,220.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,313.61 : 45,442.28 = 15,489.84 : x
  2. Step 2: Convert to fraction form
    30,313.61/45,442.28 = 15,489.84/x
  3. Step 3: Cross multiply
    30,313.61x = 45,442.28 × 15,489.84
  4. Step 4: Simplify right side
    30,313.61x = 703,893,685.16
  5. Step 5: Solve for x
    x = 703,893,685.16/30,313.61
  6. Step 6: Final answer
    x = 23,220.39

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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.