Home / 30,005.19-45,013.26-10,285.74

Finding the Fourth Proportional to 30,005.19, 45,013.26 and 10,285.74

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Solution

The fourth proportional to 30,005.19, 45,013.26 and 10,285.74 is: 15,430.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,005.19 : 45,013.26 = 10,285.74 : x
  2. Step 2: Convert to fraction form
    30,005.19/45,013.26 = 10,285.74/x
  3. Step 3: Cross multiply
    30,005.19x = 45,013.26 × 10,285.74
  4. Step 4: Simplify right side
    30,005.19x = 462,994,775.73
  5. Step 5: Solve for x
    x = 462,994,775.73/30,005.19
  6. Step 6: Final answer
    x = 15,430.49

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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.