Home / 21,347.42-29,465.69-12,398.94

Finding the Fourth Proportional to 21,347.42, 29,465.69 and 12,398.94

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Solution

The fourth proportional to 21,347.42, 29,465.69 and 12,398.94 is: 17,114.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,347.42 : 29,465.69 = 12,398.94 : x
  2. Step 2: Convert to fraction form
    21,347.42/29,465.69 = 12,398.94/x
  3. Step 3: Cross multiply
    21,347.42x = 29,465.69 × 12,398.94
  4. Step 4: Simplify right side
    21,347.42x = 365,343,427.03
  5. Step 5: Solve for x
    x = 365,343,427.03/21,347.42
  6. Step 6: Final answer
    x = 17,114.17

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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.