Home / 21,347.68-29,475.72-13,798.74

Finding the Fourth Proportional to 21,347.68, 29,475.72 and 13,798.74

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Solution

The fourth proportional to 21,347.68, 29,475.72 and 13,798.74 is: 19,052.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,347.68 : 29,475.72 = 13,798.74 : x
  2. Step 2: Convert to fraction form
    21,347.68/29,475.72 = 13,798.74/x
  3. Step 3: Cross multiply
    21,347.68x = 29,475.72 × 13,798.74
  4. Step 4: Simplify right side
    21,347.68x = 406,727,796.59
  5. Step 5: Solve for x
    x = 406,727,796.59/21,347.68
  6. Step 6: Final answer
    x = 19,052.55

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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.