Home / 21,869.02-32,803.40-18,898.44

Finding the Fourth Proportional to 21,869.02, 32,803.40 and 18,898.44

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Solution

The fourth proportional to 21,869.02, 32,803.40 and 18,898.44 is: 28,347.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,869.02 : 32,803.40 = 18,898.44 : x
  2. Step 2: Convert to fraction form
    21,869.02/32,803.40 = 18,898.44/x
  3. Step 3: Cross multiply
    21,869.02x = 32,803.40 × 18,898.44
  4. Step 4: Simplify right side
    21,869.02x = 619,933,086.70
  5. Step 5: Solve for x
    x = 619,933,086.70/21,869.02
  6. Step 6: Final answer
    x = 28,347.55

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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.