Home / 30,332.55-41,880.26-21,277.15

Finding the Fourth Proportional to 30,332.55, 41,880.26 and 21,277.15

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Solution

The fourth proportional to 30,332.55, 41,880.26 and 21,277.15 is: 29,377.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,332.55 : 41,880.26 = 21,277.15 : x
  2. Step 2: Convert to fraction form
    30,332.55/41,880.26 = 21,277.15/x
  3. Step 3: Cross multiply
    30,332.55x = 41,880.26 × 21,277.15
  4. Step 4: Simplify right side
    30,332.55x = 891,092,574.06
  5. Step 5: Solve for x
    x = 891,092,574.06/30,332.55
  6. Step 6: Final answer
    x = 29,377.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.