Home / 20,255.95-27,953.16-11,303.36

Finding the Fourth Proportional to 20,255.95, 27,953.16 and 11,303.36

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Solution

The fourth proportional to 20,255.95, 27,953.16 and 11,303.36 is: 15,598.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,255.95 : 27,953.16 = 11,303.36 : x
  2. Step 2: Convert to fraction form
    20,255.95/27,953.16 = 11,303.36/x
  3. Step 3: Cross multiply
    20,255.95x = 27,953.16 × 11,303.36
  4. Step 4: Simplify right side
    20,255.95x = 315,964,434.34
  5. Step 5: Solve for x
    x = 315,964,434.34/20,255.95
  6. Step 6: Final answer
    x = 15,598.60

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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.