Home / 20,088.52-27,739.20-14,133.40

Finding the Fourth Proportional to 20,088.52, 27,739.20 and 14,133.40

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Solution

The fourth proportional to 20,088.52, 27,739.20 and 14,133.40 is: 19,516.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,088.52 : 27,739.20 = 14,133.40 : x
  2. Step 2: Convert to fraction form
    20,088.52/27,739.20 = 14,133.40/x
  3. Step 3: Cross multiply
    20,088.52x = 27,739.20 × 14,133.40
  4. Step 4: Simplify right side
    20,088.52x = 392,049,209.28
  5. Step 5: Solve for x
    x = 392,049,209.28/20,088.52
  6. Step 6: Final answer
    x = 19,516.08

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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.