Home / 28,288.42-42,368.03-13,507.74

Finding the Fourth Proportional to 28,288.42, 42,368.03 and 13,507.74

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Solution

The fourth proportional to 28,288.42, 42,368.03 and 13,507.74 is: 20,230.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,288.42 : 42,368.03 = 13,507.74 : x
  2. Step 2: Convert to fraction form
    28,288.42/42,368.03 = 13,507.74/x
  3. Step 3: Cross multiply
    28,288.42x = 42,368.03 × 13,507.74
  4. Step 4: Simplify right side
    28,288.42x = 572,296,266.01
  5. Step 5: Solve for x
    x = 572,296,266.01/28,288.42
  6. Step 6: Final answer
    x = 20,230.76

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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.