Home / 30,345.93-45,518.64-9,285.88

Finding the Fourth Proportional to 30,345.93, 45,518.64 and 9,285.88

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Solution

The fourth proportional to 30,345.93, 45,518.64 and 9,285.88 is: 13,928.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,345.93 : 45,518.64 = 9,285.88 : x
  2. Step 2: Convert to fraction form
    30,345.93/45,518.64 = 9,285.88/x
  3. Step 3: Cross multiply
    30,345.93x = 45,518.64 × 9,285.88
  4. Step 4: Simplify right side
    30,345.93x = 422,680,628.80
  5. Step 5: Solve for x
    x = 422,680,628.80/30,345.93
  6. Step 6: Final answer
    x = 13,928.74

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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.