Home / 30,151.04-45,228.71-7,964.19

Finding the Fourth Proportional to 30,151.04, 45,228.71 and 7,964.19

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Solution

The fourth proportional to 30,151.04, 45,228.71 and 7,964.19 is: 11,946.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,151.04 : 45,228.71 = 7,964.19 : x
  2. Step 2: Convert to fraction form
    30,151.04/45,228.71 = 7,964.19/x
  3. Step 3: Cross multiply
    30,151.04x = 45,228.71 × 7,964.19
  4. Step 4: Simplify right side
    30,151.04x = 360,210,059.81
  5. Step 5: Solve for x
    x = 360,210,059.81/30,151.04
  6. Step 6: Final answer
    x = 11,946.86

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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.