Home / 20,271.09-27,973.95-11,318.52

Finding the Fourth Proportional to 20,271.09, 27,973.95 and 11,318.52

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Solution

The fourth proportional to 20,271.09, 27,973.95 and 11,318.52 is: 15,619.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,271.09 : 27,973.95 = 11,318.52 : x
  2. Step 2: Convert to fraction form
    20,271.09/27,973.95 = 11,318.52/x
  3. Step 3: Cross multiply
    20,271.09x = 27,973.95 × 11,318.52
  4. Step 4: Simplify right side
    20,271.09x = 316,623,712.55
  5. Step 5: Solve for x
    x = 316,623,712.55/20,271.09
  6. Step 6: Final answer
    x = 15,619.47

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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.