Home / 21,192.10-29,237.02-12,236.34

Finding the Fourth Proportional to 21,192.10, 29,237.02 and 12,236.34

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Solution

The fourth proportional to 21,192.10, 29,237.02 and 12,236.34 is: 16,881.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,192.10 : 29,237.02 = 12,236.34 : x
  2. Step 2: Convert to fraction form
    21,192.10/29,237.02 = 12,236.34/x
  3. Step 3: Cross multiply
    21,192.10x = 29,237.02 × 12,236.34
  4. Step 4: Simplify right side
    21,192.10x = 357,754,117.31
  5. Step 5: Solve for x
    x = 357,754,117.31/21,192.10
  6. Step 6: Final answer
    x = 16,881.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.