Home / 21,032.02-31,554.19-7,885.42

Finding the Fourth Proportional to 21,032.02, 31,554.19 and 7,885.42

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Solution

The fourth proportional to 21,032.02, 31,554.19 and 7,885.42 is: 11,830.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,032.02 : 31,554.19 = 7,885.42 : x
  2. Step 2: Convert to fraction form
    21,032.02/31,554.19 = 7,885.42/x
  3. Step 3: Cross multiply
    21,032.02x = 31,554.19 × 7,885.42
  4. Step 4: Simplify right side
    21,032.02x = 248,817,971.88
  5. Step 5: Solve for x
    x = 248,817,971.88/21,032.02
  6. Step 6: Final answer
    x = 11,830.44

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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.