Home / 43,312.38-64,994.48-18,688.38

Finding the Fourth Proportional to 43,312.38, 64,994.48 and 18,688.38

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Solution

The fourth proportional to 43,312.38, 64,994.48 and 18,688.38 is: 28,043.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,312.38 : 64,994.48 = 18,688.38 : x
  2. Step 2: Convert to fraction form
    43,312.38/64,994.48 = 18,688.38/x
  3. Step 3: Cross multiply
    43,312.38x = 64,994.48 × 18,688.38
  4. Step 4: Simplify right side
    43,312.38x = 1,214,641,540.14
  5. Step 5: Solve for x
    x = 1,214,641,540.14/43,312.38
  6. Step 6: Final answer
    x = 28,043.75

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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.