Home / 25,719.81-35,505.47-19,348.82

Finding the Fourth Proportional to 25,719.81, 35,505.47 and 19,348.82

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Solution

The fourth proportional to 25,719.81, 35,505.47 and 19,348.82 is: 26,710.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,719.81 : 35,505.47 = 19,348.82 : x
  2. Step 2: Convert to fraction form
    25,719.81/35,505.47 = 19,348.82/x
  3. Step 3: Cross multiply
    25,719.81x = 35,505.47 × 19,348.82
  4. Step 4: Simplify right side
    25,719.81x = 686,988,948.05
  5. Step 5: Solve for x
    x = 686,988,948.05/25,719.81
  6. Step 6: Final answer
    x = 26,710.50

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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.