Home / 30,225.89-41,689.10-18,273.93

Finding the Fourth Proportional to 30,225.89, 41,689.10 and 18,273.93

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Solution

The fourth proportional to 30,225.89, 41,689.10 and 18,273.93 is: 25,204.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,225.89 : 41,689.10 = 18,273.93 : x
  2. Step 2: Convert to fraction form
    30,225.89/41,689.10 = 18,273.93/x
  3. Step 3: Cross multiply
    30,225.89x = 41,689.10 × 18,273.93
  4. Step 4: Simplify right side
    30,225.89x = 761,823,603.79
  5. Step 5: Solve for x
    x = 761,823,603.79/30,225.89
  6. Step 6: Final answer
    x = 25,204.34

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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.