Home / 28,452.84-42,700.28-13,670.32

Finding the Fourth Proportional to 28,452.84, 42,700.28 and 13,670.32

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Solution

The fourth proportional to 28,452.84, 42,700.28 and 13,670.32 is: 20,515.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,452.84 : 42,700.28 = 13,670.32 : x
  2. Step 2: Convert to fraction form
    28,452.84/42,700.28 = 13,670.32/x
  3. Step 3: Cross multiply
    28,452.84x = 42,700.28 × 13,670.32
  4. Step 4: Simplify right side
    28,452.84x = 583,726,491.69
  5. Step 5: Solve for x
    x = 583,726,491.69/28,452.84
  6. Step 6: Final answer
    x = 20,515.58

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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.