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Finding the Fourth Proportional to 30,799.04, 45,880.72 and 28,886.72

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Solution

The fourth proportional to 30,799.04, 45,880.72 and 28,886.72 is: 43,031.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,799.04 : 45,880.72 = 28,886.72 : x
  2. Step 2: Convert to fraction form
    30,799.04/45,880.72 = 28,886.72/x
  3. Step 3: Cross multiply
    30,799.04x = 45,880.72 × 28,886.72
  4. Step 4: Simplify right side
    30,799.04x = 1,325,343,512.04
  5. Step 5: Solve for x
    x = 1,325,343,512.04/30,799.04
  6. Step 6: Final answer
    x = 43,031.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.