Home / 30,151.19-45,228.95-7,964.35

Finding the Fourth Proportional to 30,151.19, 45,228.95 and 7,964.35

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Solution

The fourth proportional to 30,151.19, 45,228.95 and 7,964.35 is: 11,947.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,151.19 : 45,228.95 = 7,964.35 : x
  2. Step 2: Convert to fraction form
    30,151.19/45,228.95 = 7,964.35/x
  3. Step 3: Cross multiply
    30,151.19x = 45,228.95 × 7,964.35
  4. Step 4: Simplify right side
    30,151.19x = 360,219,187.93
  5. Step 5: Solve for x
    x = 360,219,187.93/30,151.19
  6. Step 6: Final answer
    x = 11,947.10

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Similar ratio
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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.