Home / 28,521.99-42,764.75-13,701.42

Finding the Fourth Proportional to 28,521.99, 42,764.75 and 13,701.42

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Solution

The fourth proportional to 28,521.99, 42,764.75 and 13,701.42 is: 20,543.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,521.99 : 42,764.75 = 13,701.42 : x
  2. Step 2: Convert to fraction form
    28,521.99/42,764.75 = 13,701.42/x
  3. Step 3: Cross multiply
    28,521.99x = 42,764.75 × 13,701.42
  4. Step 4: Simplify right side
    28,521.99x = 585,937,800.95
  5. Step 5: Solve for x
    x = 585,937,800.95/28,521.99
  6. Step 6: Final answer
    x = 20,543.37

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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.