Home / 28,424.58-39,219.93-20,484.42

Finding the Fourth Proportional to 28,424.58, 39,219.93 and 20,484.42

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Solution

The fourth proportional to 28,424.58, 39,219.93 and 20,484.42 is: 28,264.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,424.58 : 39,219.93 = 20,484.42 : x
  2. Step 2: Convert to fraction form
    28,424.58/39,219.93 = 20,484.42/x
  3. Step 3: Cross multiply
    28,424.58x = 39,219.93 × 20,484.42
  4. Step 4: Simplify right side
    28,424.58x = 803,397,518.49
  5. Step 5: Solve for x
    x = 803,397,518.49/28,424.58
  6. Step 6: Final answer
    x = 28,264.18

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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.