Home / 20,444.86-28,206.90-13,283.74

Finding the Fourth Proportional to 20,444.86, 28,206.90 and 13,283.74

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Solution

The fourth proportional to 20,444.86, 28,206.90 and 13,283.74 is: 18,327.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,444.86 : 28,206.90 = 13,283.74 : x
  2. Step 2: Convert to fraction form
    20,444.86/28,206.90 = 13,283.74/x
  3. Step 3: Cross multiply
    20,444.86x = 28,206.90 × 13,283.74
  4. Step 4: Simplify right side
    20,444.86x = 374,693,125.81
  5. Step 5: Solve for x
    x = 374,693,125.81/20,444.86
  6. Step 6: Final answer
    x = 18,327.01

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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.