Home / 42,852.56-64,270.20-11,685.20

Finding the Fourth Proportional to 42,852.56, 64,270.20 and 11,685.20

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Solution

The fourth proportional to 42,852.56, 64,270.20 and 11,685.20 is: 17,525.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,852.56 : 64,270.20 = 11,685.20 : x
  2. Step 2: Convert to fraction form
    42,852.56/64,270.20 = 11,685.20/x
  3. Step 3: Cross multiply
    42,852.56x = 64,270.20 × 11,685.20
  4. Step 4: Simplify right side
    42,852.56x = 751,010,141.04
  5. Step 5: Solve for x
    x = 751,010,141.04/42,852.56
  6. Step 6: Final answer
    x = 17,525.44

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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.