Home / 42,928.25-64,403.30-13,346.33

Finding the Fourth Proportional to 42,928.25, 64,403.30 and 13,346.33

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Solution

The fourth proportional to 42,928.25, 64,403.30 and 13,346.33 is: 20,022.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,928.25 : 64,403.30 = 13,346.33 : x
  2. Step 2: Convert to fraction form
    42,928.25/64,403.30 = 13,346.33/x
  3. Step 3: Cross multiply
    42,928.25x = 64,403.30 × 13,346.33
  4. Step 4: Simplify right side
    42,928.25x = 859,547,406.24
  5. Step 5: Solve for x
    x = 859,547,406.24/42,928.25
  6. Step 6: Final answer
    x = 20,022.89

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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.