Home / 32,918.58-45,412.99-20,977.56

Finding the Fourth Proportional to 32,918.58, 45,412.99 and 20,977.56

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Solution

The fourth proportional to 32,918.58, 45,412.99 and 20,977.56 is: 28,939.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,918.58 : 45,412.99 = 20,977.56 : x
  2. Step 2: Convert to fraction form
    32,918.58/45,412.99 = 20,977.56/x
  3. Step 3: Cross multiply
    32,918.58x = 45,412.99 × 20,977.56
  4. Step 4: Simplify right side
    32,918.58x = 952,653,670.06
  5. Step 5: Solve for x
    x = 952,653,670.06/32,918.58
  6. Step 6: Final answer
    x = 28,939.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.