Home / 40,095.70-55,317.12-30,899.94

Finding the Fourth Proportional to 40,095.70, 55,317.12 and 30,899.94

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Solution

The fourth proportional to 40,095.70, 55,317.12 and 30,899.94 is: 42,630.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,095.70 : 55,317.12 = 30,899.94 : x
  2. Step 2: Convert to fraction form
    40,095.70/55,317.12 = 30,899.94/x
  3. Step 3: Cross multiply
    40,095.70x = 55,317.12 × 30,899.94
  4. Step 4: Simplify right side
    40,095.70x = 1,709,295,688.97
  5. Step 5: Solve for x
    x = 1,709,295,688.97/40,095.70
  6. Step 6: Final answer
    x = 42,630.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.