Home / 28,718.37-43,070.49-9,995.67

Finding the Fourth Proportional to 28,718.37, 43,070.49 and 9,995.67

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Solution

The fourth proportional to 28,718.37, 43,070.49 and 9,995.67 is: 14,991.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,718.37 : 43,070.49 = 9,995.67 : x
  2. Step 2: Convert to fraction form
    28,718.37/43,070.49 = 9,995.67/x
  3. Step 3: Cross multiply
    28,718.37x = 43,070.49 × 9,995.67
  4. Step 4: Simplify right side
    28,718.37x = 430,518,404.78
  5. Step 5: Solve for x
    x = 430,518,404.78/28,718.37
  6. Step 6: Final answer
    x = 14,991.05

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Double scale
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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.