Home / 21,210.32-31,767.03-10,124.80

Finding the Fourth Proportional to 21,210.32, 31,767.03 and 10,124.80

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Solution

The fourth proportional to 21,210.32, 31,767.03 and 10,124.80 is: 15,164.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,210.32 : 31,767.03 = 10,124.80 : x
  2. Step 2: Convert to fraction form
    21,210.32/31,767.03 = 10,124.80/x
  3. Step 3: Cross multiply
    21,210.32x = 31,767.03 × 10,124.80
  4. Step 4: Simplify right side
    21,210.32x = 321,634,745.93
  5. Step 5: Solve for x
    x = 321,634,745.93/21,210.32
  6. Step 6: Final answer
    x = 15,164.07

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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.