Home / 30,017.56-45,015.54-10,290.82

Finding the Fourth Proportional to 30,017.56, 45,015.54 and 10,290.82

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Solution

The fourth proportional to 30,017.56, 45,015.54 and 10,290.82 is: 15,432.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,017.56 : 45,015.54 = 10,290.82 : x
  2. Step 2: Convert to fraction form
    30,017.56/45,015.54 = 10,290.82/x
  3. Step 3: Cross multiply
    30,017.56x = 45,015.54 × 10,290.82
  4. Step 4: Simplify right side
    30,017.56x = 463,246,819.34
  5. Step 5: Solve for x
    x = 463,246,819.34/30,017.56
  6. Step 6: Final answer
    x = 15,432.53

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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.