Home / 21,347.52-29,457.35-12,393.29

Finding the Fourth Proportional to 21,347.52, 29,457.35 and 12,393.29

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Solution

The fourth proportional to 21,347.52, 29,457.35 and 12,393.29 is: 17,101.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,347.52 : 29,457.35 = 12,393.29 : x
  2. Step 2: Convert to fraction form
    21,347.52/29,457.35 = 12,393.29/x
  3. Step 3: Cross multiply
    21,347.52x = 29,457.35 × 12,393.29
  4. Step 4: Simplify right side
    21,347.52x = 365,073,271.93
  5. Step 5: Solve for x
    x = 365,073,271.93/21,347.52
  6. Step 6: Final answer
    x = 17,101.44

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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.