Home / 21,294.42-29,398.08-12,798.60

Finding the Fourth Proportional to 21,294.42, 29,398.08 and 12,798.60

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Solution

The fourth proportional to 21,294.42, 29,398.08 and 12,798.60 is: 17,669.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,294.42 : 29,398.08 = 12,798.60 : x
  2. Step 2: Convert to fraction form
    21,294.42/29,398.08 = 12,798.60/x
  3. Step 3: Cross multiply
    21,294.42x = 29,398.08 × 12,798.60
  4. Step 4: Simplify right side
    21,294.42x = 376,254,266.69
  5. Step 5: Solve for x
    x = 376,254,266.69/21,294.42
  6. Step 6: Final answer
    x = 17,669.15

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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.