Home / 28,303.80-42,390.96-13,523.10

Finding the Fourth Proportional to 28,303.80, 42,390.96 and 13,523.10

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Solution

The fourth proportional to 28,303.80, 42,390.96 and 13,523.10 is: 20,253.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,303.80 : 42,390.96 = 13,523.10 : x
  2. Step 2: Convert to fraction form
    28,303.80/42,390.96 = 13,523.10/x
  3. Step 3: Cross multiply
    28,303.80x = 42,390.96 × 13,523.10
  4. Step 4: Simplify right side
    28,303.80x = 573,257,191.18
  5. Step 5: Solve for x
    x = 573,257,191.18/28,303.80
  6. Step 6: Final answer
    x = 20,253.72

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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.