Home / 28,749.18-43,065.45-18,893.10

Finding the Fourth Proportional to 28,749.18, 43,065.45 and 18,893.10

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Solution

The fourth proportional to 28,749.18, 43,065.45 and 18,893.10 is: 28,301.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,749.18 : 43,065.45 = 18,893.10 : x
  2. Step 2: Convert to fraction form
    28,749.18/43,065.45 = 18,893.10/x
  3. Step 3: Cross multiply
    28,749.18x = 43,065.45 × 18,893.10
  4. Step 4: Simplify right side
    28,749.18x = 813,639,853.40
  5. Step 5: Solve for x
    x = 813,639,853.40/28,749.18
  6. Step 6: Final answer
    x = 28,301.32

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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.