Home / 21,283.02-31,903.62-7,946.25

Finding the Fourth Proportional to 21,283.02, 31,903.62 and 7,946.25

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Solution

The fourth proportional to 21,283.02, 31,903.62 and 7,946.25 is: 11,911.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,283.02 : 31,903.62 = 7,946.25 : x
  2. Step 2: Convert to fraction form
    21,283.02/31,903.62 = 7,946.25/x
  3. Step 3: Cross multiply
    21,283.02x = 31,903.62 × 7,946.25
  4. Step 4: Simplify right side
    21,283.02x = 253,514,140.43
  5. Step 5: Solve for x
    x = 253,514,140.43/21,283.02
  6. Step 6: Final answer
    x = 11,911.57

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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.