Home / 30,502.32-45,667.20-19,381.44

Finding the Fourth Proportional to 30,502.32, 45,667.20 and 19,381.44

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Solution

The fourth proportional to 30,502.32, 45,667.20 and 19,381.44 is: 29,017.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,502.32 : 45,667.20 = 19,381.44 : x
  2. Step 2: Convert to fraction form
    30,502.32/45,667.20 = 19,381.44/x
  3. Step 3: Cross multiply
    30,502.32x = 45,667.20 × 19,381.44
  4. Step 4: Simplify right side
    30,502.32x = 885,096,096.77
  5. Step 5: Solve for x
    x = 885,096,096.77/30,502.32
  6. Step 6: Final answer
    x = 29,017.34

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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.