Home / 30,415.19-45,624.41-9,640.31

Finding the Fourth Proportional to 30,415.19, 45,624.41 and 9,640.31

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Solution

The fourth proportional to 30,415.19, 45,624.41 and 9,640.31 is: 14,460.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,415.19 : 45,624.41 = 9,640.31 : x
  2. Step 2: Convert to fraction form
    30,415.19/45,624.41 = 9,640.31/x
  3. Step 3: Cross multiply
    30,415.19x = 45,624.41 × 9,640.31
  4. Step 4: Simplify right side
    30,415.19x = 439,833,407.77
  5. Step 5: Solve for x
    x = 439,833,407.77/30,415.19
  6. Step 6: Final answer
    x = 14,460.98

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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.