Home / 27,935.48-38,519.40-20,368.46

Finding the Fourth Proportional to 27,935.48, 38,519.40 and 20,368.46

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Solution

The fourth proportional to 27,935.48, 38,519.40 and 20,368.46 is: 28,085.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,935.48 : 38,519.40 = 20,368.46 : x
  2. Step 2: Convert to fraction form
    27,935.48/38,519.40 = 20,368.46/x
  3. Step 3: Cross multiply
    27,935.48x = 38,519.40 × 20,368.46
  4. Step 4: Simplify right side
    27,935.48x = 784,580,858.12
  5. Step 5: Solve for x
    x = 784,580,858.12/27,935.48
  6. Step 6: Final answer
    x = 28,085.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.