Home / 30,152.19-45,230.45-7,965.35

Finding the Fourth Proportional to 30,152.19, 45,230.45 and 7,965.35

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Solution

The fourth proportional to 30,152.19, 45,230.45 and 7,965.35 is: 11,948.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,152.19 : 45,230.45 = 7,965.35 : x
  2. Step 2: Convert to fraction form
    30,152.19/45,230.45 = 7,965.35/x
  3. Step 3: Cross multiply
    30,152.19x = 45,230.45 × 7,965.35
  4. Step 4: Simplify right side
    30,152.19x = 360,276,364.91
  5. Step 5: Solve for x
    x = 360,276,364.91/30,152.19
  6. Step 6: Final answer
    x = 11,948.60

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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.