Home / 21,308.39-31,962.57-5,726.01

Finding the Fourth Proportional to 21,308.39, 31,962.57 and 5,726.01

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Solution

The fourth proportional to 21,308.39, 31,962.57 and 5,726.01 is: 8,589.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,308.39 : 31,962.57 = 5,726.01 : x
  2. Step 2: Convert to fraction form
    21,308.39/31,962.57 = 5,726.01/x
  3. Step 3: Cross multiply
    21,308.39x = 31,962.57 × 5,726.01
  4. Step 4: Simplify right side
    21,308.39x = 183,017,995.45
  5. Step 5: Solve for x
    x = 183,017,995.45/21,308.39
  6. Step 6: Final answer
    x = 8,589.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.