Home / 21,127.07-31,695.47-7,088.96

Finding the Fourth Proportional to 21,127.07, 31,695.47 and 7,088.96

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Solution

The fourth proportional to 21,127.07, 31,695.47 and 7,088.96 is: 10,635.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,127.07 : 31,695.47 = 7,088.96 : x
  2. Step 2: Convert to fraction form
    21,127.07/31,695.47 = 7,088.96/x
  3. Step 3: Cross multiply
    21,127.07x = 31,695.47 × 7,088.96
  4. Step 4: Simplify right side
    21,127.07x = 224,687,919.01
  5. Step 5: Solve for x
    x = 224,687,919.01/21,127.07
  6. Step 6: Final answer
    x = 10,635.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.