Home / 30,502.21-42,087.07-19,165.14

Finding the Fourth Proportional to 30,502.21, 42,087.07 and 19,165.14

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Solution

The fourth proportional to 30,502.21, 42,087.07 and 19,165.14 is: 26,444.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,502.21 : 42,087.07 = 19,165.14 : x
  2. Step 2: Convert to fraction form
    30,502.21/42,087.07 = 19,165.14/x
  3. Step 3: Cross multiply
    30,502.21x = 42,087.07 × 19,165.14
  4. Step 4: Simplify right side
    30,502.21x = 806,604,492.91
  5. Step 5: Solve for x
    x = 806,604,492.91/30,502.21
  6. Step 6: Final answer
    x = 26,444.13

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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.