Home / 30,042.04-45,059.15-7,857.13

Finding the Fourth Proportional to 30,042.04, 45,059.15 and 7,857.13

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Solution

The fourth proportional to 30,042.04, 45,059.15 and 7,857.13 is: 11,784.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,042.04 : 45,059.15 = 7,857.13 : x
  2. Step 2: Convert to fraction form
    30,042.04/45,059.15 = 7,857.13/x
  3. Step 3: Cross multiply
    30,042.04x = 45,059.15 × 7,857.13
  4. Step 4: Simplify right side
    30,042.04x = 354,035,599.24
  5. Step 5: Solve for x
    x = 354,035,599.24/30,042.04
  6. Step 6: Final answer
    x = 11,784.67

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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.