Home / 43,137.30-64,708.98-11,547.30

Finding the Fourth Proportional to 43,137.30, 64,708.98 and 11,547.30

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Solution

The fourth proportional to 43,137.30, 64,708.98 and 11,547.30 is: 17,321.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,137.30 : 64,708.98 = 11,547.30 : x
  2. Step 2: Convert to fraction form
    43,137.30/64,708.98 = 11,547.30/x
  3. Step 3: Cross multiply
    43,137.30x = 64,708.98 × 11,547.30
  4. Step 4: Simplify right side
    43,137.30x = 747,214,004.75
  5. Step 5: Solve for x
    x = 747,214,004.75/43,137.30
  6. Step 6: Final answer
    x = 17,321.76

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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.