Home / 28,780.26-43,189.96-10,312.26

Finding the Fourth Proportional to 28,780.26, 43,189.96 and 10,312.26

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Solution

The fourth proportional to 28,780.26, 43,189.96 and 10,312.26 is: 15,475.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,780.26 : 43,189.96 = 10,312.26 : x
  2. Step 2: Convert to fraction form
    28,780.26/43,189.96 = 10,312.26/x
  3. Step 3: Cross multiply
    28,780.26x = 43,189.96 × 10,312.26
  4. Step 4: Simplify right side
    28,780.26x = 445,386,096.91
  5. Step 5: Solve for x
    x = 445,386,096.91/28,780.26
  6. Step 6: Final answer
    x = 15,475.40

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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.