Home / 21,270.08-29,353.08-11,710.32

Finding the Fourth Proportional to 21,270.08, 29,353.08 and 11,710.32

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Solution

The fourth proportional to 21,270.08, 29,353.08 and 11,710.32 is: 16,160.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,270.08 : 29,353.08 = 11,710.32 : x
  2. Step 2: Convert to fraction form
    21,270.08/29,353.08 = 11,710.32/x
  3. Step 3: Cross multiply
    21,270.08x = 29,353.08 × 11,710.32
  4. Step 4: Simplify right side
    21,270.08x = 343,733,959.79
  5. Step 5: Solve for x
    x = 343,733,959.79/21,270.08
  6. Step 6: Final answer
    x = 16,160.45

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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.