Home / 39,935.16-55,110.53-22,030.21

Finding the Fourth Proportional to 39,935.16, 55,110.53 and 22,030.21

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Solution

The fourth proportional to 39,935.16, 55,110.53 and 22,030.21 is: 30,401.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,935.16 : 55,110.53 = 22,030.21 : x
  2. Step 2: Convert to fraction form
    39,935.16/55,110.53 = 22,030.21/x
  3. Step 3: Cross multiply
    39,935.16x = 55,110.53 × 22,030.21
  4. Step 4: Simplify right side
    39,935.16x = 1,214,096,549.11
  5. Step 5: Solve for x
    x = 1,214,096,549.11/39,935.16
  6. Step 6: Final answer
    x = 30,401.69

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Double scale
Find fourth proportional to 39,936.16, 55,111.91 and 22,031.21
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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.