Home / 30,798.48-42,492.20-18,849.36

Finding the Fourth Proportional to 30,798.48, 42,492.20 and 18,849.36

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Solution

The fourth proportional to 30,798.48, 42,492.20 and 18,849.36 is: 26,006.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,798.48 : 42,492.20 = 18,849.36 : x
  2. Step 2: Convert to fraction form
    30,798.48/42,492.20 = 18,849.36/x
  3. Step 3: Cross multiply
    30,798.48x = 42,492.20 × 18,849.36
  4. Step 4: Simplify right side
    30,798.48x = 800,950,774.99
  5. Step 5: Solve for x
    x = 800,950,774.99/30,798.48
  6. Step 6: Final answer
    x = 26,006.18

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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.