Home / 21,899.36-30,215.63-12,337.31

Finding the Fourth Proportional to 21,899.36, 30,215.63 and 12,337.31

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Solution

The fourth proportional to 21,899.36, 30,215.63 and 12,337.31 is: 17,022.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,899.36 : 30,215.63 = 12,337.31 : x
  2. Step 2: Convert to fraction form
    21,899.36/30,215.63 = 12,337.31/x
  3. Step 3: Cross multiply
    21,899.36x = 30,215.63 × 12,337.31
  4. Step 4: Simplify right side
    21,899.36x = 372,779,700.54
  5. Step 5: Solve for x
    x = 372,779,700.54/21,899.36
  6. Step 6: Final answer
    x = 17,022.40

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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.