Home / 35,783.28-49,381.36-19,869.20

Finding the Fourth Proportional to 35,783.28, 49,381.36 and 19,869.20

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Solution

The fourth proportional to 35,783.28, 49,381.36 and 19,869.20 is: 27,419.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,783.28 : 49,381.36 = 19,869.20 : x
  2. Step 2: Convert to fraction form
    35,783.28/49,381.36 = 19,869.20/x
  3. Step 3: Cross multiply
    35,783.28x = 49,381.36 × 19,869.20
  4. Step 4: Simplify right side
    35,783.28x = 981,168,118.11
  5. Step 5: Solve for x
    x = 981,168,118.11/35,783.28
  6. Step 6: Final answer
    x = 27,419.74

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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.