Home / 20,023.81-27,630.43-11,070.09

Finding the Fourth Proportional to 20,023.81, 27,630.43 and 11,070.09

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Solution

The fourth proportional to 20,023.81, 27,630.43 and 11,070.09 is: 15,275.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,023.81 : 27,630.43 = 11,070.09 : x
  2. Step 2: Convert to fraction form
    20,023.81/27,630.43 = 11,070.09/x
  3. Step 3: Cross multiply
    20,023.81x = 27,630.43 × 11,070.09
  4. Step 4: Simplify right side
    20,023.81x = 305,871,319.16
  5. Step 5: Solve for x
    x = 305,871,319.16/20,023.81
  6. Step 6: Final answer
    x = 15,275.38

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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.