Home / 21,713.40-32,483.70-18,823.80

Finding the Fourth Proportional to 21,713.40, 32,483.70 and 18,823.80

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Solution

The fourth proportional to 21,713.40, 32,483.70 and 18,823.80 is: 28,160.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,713.40 : 32,483.70 = 18,823.80 : x
  2. Step 2: Convert to fraction form
    21,713.40/32,483.70 = 18,823.80/x
  3. Step 3: Cross multiply
    21,713.40x = 32,483.70 × 18,823.80
  4. Step 4: Simplify right side
    21,713.40x = 611,466,672.06
  5. Step 5: Solve for x
    x = 611,466,672.06/21,713.40
  6. Step 6: Final answer
    x = 28,160.80

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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.