Home / 30,531.01-42,153.35-19,063.38

Finding the Fourth Proportional to 30,531.01, 42,153.35 and 19,063.38

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Solution

The fourth proportional to 30,531.01, 42,153.35 and 19,063.38 is: 26,320.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,531.01 : 42,153.35 = 19,063.38 : x
  2. Step 2: Convert to fraction form
    30,531.01/42,153.35 = 19,063.38/x
  3. Step 3: Cross multiply
    30,531.01x = 42,153.35 × 19,063.38
  4. Step 4: Simplify right side
    30,531.01x = 803,585,023.24
  5. Step 5: Solve for x
    x = 803,585,023.24/30,531.01
  6. Step 6: Final answer
    x = 26,320.29

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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.