Home / 30,203.09-45,298.47-11,476.55

Finding the Fourth Proportional to 30,203.09, 45,298.47 and 11,476.55

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Solution

The fourth proportional to 30,203.09, 45,298.47 and 11,476.55 is: 17,212.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,203.09 : 45,298.47 = 11,476.55 : x
  2. Step 2: Convert to fraction form
    30,203.09/45,298.47 = 11,476.55/x
  3. Step 3: Cross multiply
    30,203.09x = 45,298.47 × 11,476.55
  4. Step 4: Simplify right side
    30,203.09x = 519,870,312.16
  5. Step 5: Solve for x
    x = 519,870,312.16/30,203.09
  6. Step 6: Final answer
    x = 17,212.49

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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.