Home / 18,421.60-27,646.46-13,503.84

Finding the Fourth Proportional to 18,421.60, 27,646.46 and 13,503.84

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Solution

The fourth proportional to 18,421.60, 27,646.46 and 13,503.84 is: 20,266.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,421.60 : 27,646.46 = 13,503.84 : x
  2. Step 2: Convert to fraction form
    18,421.60/27,646.46 = 13,503.84/x
  3. Step 3: Cross multiply
    18,421.60x = 27,646.46 × 13,503.84
  4. Step 4: Simplify right side
    18,421.60x = 373,333,372.41
  5. Step 5: Solve for x
    x = 373,333,372.41/18,421.60
  6. Step 6: Final answer
    x = 20,266.07

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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.