Home / 42,430.44-63,548.73-20,259.39

Finding the Fourth Proportional to 42,430.44, 63,548.73 and 20,259.39

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Solution

The fourth proportional to 42,430.44, 63,548.73 and 20,259.39 is: 30,342.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,430.44 : 63,548.73 = 20,259.39 : x
  2. Step 2: Convert to fraction form
    42,430.44/63,548.73 = 20,259.39/x
  3. Step 3: Cross multiply
    42,430.44x = 63,548.73 × 20,259.39
  4. Step 4: Simplify right side
    42,430.44x = 1,287,458,505.07
  5. Step 5: Solve for x
    x = 1,287,458,505.07/42,430.44
  6. Step 6: Final answer
    x = 30,342.80

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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.