Home / 21,074.04-31,607.28-7,926.84

Finding the Fourth Proportional to 21,074.04, 31,607.28 and 7,926.84

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Solution

The fourth proportional to 21,074.04, 31,607.28 and 7,926.84 is: 11,888.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,074.04 : 31,607.28 = 7,926.84 : x
  2. Step 2: Convert to fraction form
    21,074.04/31,607.28 = 7,926.84/x
  3. Step 3: Cross multiply
    21,074.04x = 31,607.28 × 7,926.84
  4. Step 4: Simplify right side
    21,074.04x = 250,545,851.40
  5. Step 5: Solve for x
    x = 250,545,851.40/21,074.04
  6. Step 6: Final answer
    x = 11,888.84

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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.