Home / 30,059.86-45,095.46-9,278.50

Finding the Fourth Proportional to 30,059.86, 45,095.46 and 9,278.50

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Solution

The fourth proportional to 30,059.86, 45,095.46 and 9,278.50 is: 13,919.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,059.86 : 45,095.46 = 9,278.50 : x
  2. Step 2: Convert to fraction form
    30,059.86/45,095.46 = 9,278.50/x
  3. Step 3: Cross multiply
    30,059.86x = 45,095.46 × 9,278.50
  4. Step 4: Simplify right side
    30,059.86x = 418,418,225.61
  5. Step 5: Solve for x
    x = 418,418,225.61/30,059.86
  6. Step 6: Final answer
    x = 13,919.50

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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.