Home / 21,007.07-31,510.51-6,216.08

Finding the Fourth Proportional to 21,007.07, 31,510.51 and 6,216.08

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Solution

The fourth proportional to 21,007.07, 31,510.51 and 6,216.08 is: 9,324.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,007.07 : 31,510.51 = 6,216.08 : x
  2. Step 2: Convert to fraction form
    21,007.07/31,510.51 = 6,216.08/x
  3. Step 3: Cross multiply
    21,007.07x = 31,510.51 × 6,216.08
  4. Step 4: Simplify right side
    21,007.07x = 195,871,851.00
  5. Step 5: Solve for x
    x = 195,871,851.00/21,007.07
  6. Step 6: Final answer
    x = 9,324.09

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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.