Home / 30,647.04-45,969.12-8,460.24

Finding the Fourth Proportional to 30,647.04, 45,969.12 and 8,460.24

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Solution

The fourth proportional to 30,647.04, 45,969.12 and 8,460.24 is: 12,689.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,647.04 : 45,969.12 = 8,460.24 : x
  2. Step 2: Convert to fraction form
    30,647.04/45,969.12 = 8,460.24/x
  3. Step 3: Cross multiply
    30,647.04x = 45,969.12 × 8,460.24
  4. Step 4: Simplify right side
    30,647.04x = 388,909,787.79
  5. Step 5: Solve for x
    x = 388,909,787.79/30,647.04
  6. Step 6: Final answer
    x = 12,689.96

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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.