Home / 21,039.28-31,547.86-6,246.16

Finding the Fourth Proportional to 21,039.28, 31,547.86 and 6,246.16

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Solution

The fourth proportional to 21,039.28, 31,547.86 and 6,246.16 is: 9,365.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,039.28 : 31,547.86 = 6,246.16 : x
  2. Step 2: Convert to fraction form
    21,039.28/31,547.86 = 6,246.16/x
  3. Step 3: Cross multiply
    21,039.28x = 31,547.86 × 6,246.16
  4. Step 4: Simplify right side
    21,039.28x = 197,052,981.22
  5. Step 5: Solve for x
    x = 197,052,981.22/21,039.28
  6. Step 6: Final answer
    x = 9,365.96

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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.