Home / 30,223.48-45,411.76-19,135.38

Finding the Fourth Proportional to 30,223.48, 45,411.76 and 19,135.38

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Solution

The fourth proportional to 30,223.48, 45,411.76 and 19,135.38 is: 28,751.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,223.48 : 45,411.76 = 19,135.38 : x
  2. Step 2: Convert to fraction form
    30,223.48/45,411.76 = 19,135.38/x
  3. Step 3: Cross multiply
    30,223.48x = 45,411.76 × 19,135.38
  4. Step 4: Simplify right side
    30,223.48x = 868,971,284.07
  5. Step 5: Solve for x
    x = 868,971,284.07/30,223.48
  6. Step 6: Final answer
    x = 28,751.53

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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.