Home / 43,036.04-64,495.68-20,805.14

Finding the Fourth Proportional to 43,036.04, 64,495.68 and 20,805.14

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Solution

The fourth proportional to 43,036.04, 64,495.68 and 20,805.14 is: 31,179.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,036.04 : 64,495.68 = 20,805.14 : x
  2. Step 2: Convert to fraction form
    43,036.04/64,495.68 = 20,805.14/x
  3. Step 3: Cross multiply
    43,036.04x = 64,495.68 × 20,805.14
  4. Step 4: Simplify right side
    43,036.04x = 1,341,841,651.80
  5. Step 5: Solve for x
    x = 1,341,841,651.80/43,036.04
  6. Step 6: Final answer
    x = 31,179.49

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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.