Home / 43,010.91-64,534.65-20,840.80

Finding the Fourth Proportional to 43,010.91, 64,534.65 and 20,840.80

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Solution

The fourth proportional to 43,010.91, 64,534.65 and 20,840.80 is: 31,270.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,010.91 : 64,534.65 = 20,840.80 : x
  2. Step 2: Convert to fraction form
    43,010.91/64,534.65 = 20,840.80/x
  3. Step 3: Cross multiply
    43,010.91x = 64,534.65 × 20,840.80
  4. Step 4: Simplify right side
    43,010.91x = 1,344,953,733.72
  5. Step 5: Solve for x
    x = 1,344,953,733.72/43,010.91
  6. Step 6: Final answer
    x = 31,270.06

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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.