Home / 42,857.09-64,302.56-13,277.24

Finding the Fourth Proportional to 42,857.09, 64,302.56 and 13,277.24

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Solution

The fourth proportional to 42,857.09, 64,302.56 and 13,277.24 is: 19,921.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,857.09 : 64,302.56 = 13,277.24 : x
  2. Step 2: Convert to fraction form
    42,857.09/64,302.56 = 13,277.24/x
  3. Step 3: Cross multiply
    42,857.09x = 64,302.56 × 13,277.24
  4. Step 4: Simplify right side
    42,857.09x = 853,760,133.84
  5. Step 5: Solve for x
    x = 853,760,133.84/42,857.09
  6. Step 6: Final answer
    x = 19,921.10

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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.