Home / 21,014.04-31,521.94-6,975.32

Finding the Fourth Proportional to 21,014.04, 31,521.94 and 6,975.32

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Solution

The fourth proportional to 21,014.04, 31,521.94 and 6,975.32 is: 10,463.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,014.04 : 31,521.94 = 6,975.32 : x
  2. Step 2: Convert to fraction form
    21,014.04/31,521.94 = 6,975.32/x
  3. Step 3: Cross multiply
    21,014.04x = 31,521.94 × 6,975.32
  4. Step 4: Simplify right side
    21,014.04x = 219,875,618.52
  5. Step 5: Solve for x
    x = 219,875,618.52/21,014.04
  6. Step 6: Final answer
    x = 10,463.27

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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.