Home / 30,207.75-41,689.95-18,277.66

Finding the Fourth Proportional to 30,207.75, 41,689.95 and 18,277.66

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Solution

The fourth proportional to 30,207.75, 41,689.95 and 18,277.66 is: 25,225.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,207.75 : 41,689.95 = 18,277.66 : x
  2. Step 2: Convert to fraction form
    30,207.75/41,689.95 = 18,277.66/x
  3. Step 3: Cross multiply
    30,207.75x = 41,689.95 × 18,277.66
  4. Step 4: Simplify right side
    30,207.75x = 761,994,731.52
  5. Step 5: Solve for x
    x = 761,994,731.52/30,207.75
  6. Step 6: Final answer
    x = 25,225.14

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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.