Home / 28,333.46-42,465.32-12,521.45

Finding the Fourth Proportional to 28,333.46, 42,465.32 and 12,521.45

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Solution

The fourth proportional to 28,333.46, 42,465.32 and 12,521.45 is: 18,766.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,333.46 : 42,465.32 = 12,521.45 : x
  2. Step 2: Convert to fraction form
    28,333.46/42,465.32 = 12,521.45/x
  3. Step 3: Cross multiply
    28,333.46x = 42,465.32 × 12,521.45
  4. Step 4: Simplify right side
    28,333.46x = 531,727,381.11
  5. Step 5: Solve for x
    x = 531,727,381.11/28,333.46
  6. Step 6: Final answer
    x = 18,766.76

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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.