Home / 30,420.84-45,651.60-10,699.32

Finding the Fourth Proportional to 30,420.84, 45,651.60 and 10,699.32

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Solution

The fourth proportional to 30,420.84, 45,651.60 and 10,699.32 is: 16,056.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,420.84 : 45,651.60 = 10,699.32 : x
  2. Step 2: Convert to fraction form
    30,420.84/45,651.60 = 10,699.32/x
  3. Step 3: Cross multiply
    30,420.84x = 45,651.60 × 10,699.32
  4. Step 4: Simplify right side
    30,420.84x = 488,441,076.91
  5. Step 5: Solve for x
    x = 488,441,076.91/30,420.84
  6. Step 6: Final answer
    x = 16,056.13

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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.