Home / 21,331.08-31,952.88-14,289.48

Finding the Fourth Proportional to 21,331.08, 31,952.88 and 14,289.48

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Solution

The fourth proportional to 21,331.08, 31,952.88 and 14,289.48 is: 21,404.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,331.08 : 31,952.88 = 14,289.48 : x
  2. Step 2: Convert to fraction form
    21,331.08/31,952.88 = 14,289.48/x
  3. Step 3: Cross multiply
    21,331.08x = 31,952.88 × 14,289.48
  4. Step 4: Simplify right side
    21,331.08x = 456,590,039.70
  5. Step 5: Solve for x
    x = 456,590,039.70/21,331.08
  6. Step 6: Final answer
    x = 21,404.92

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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.