Home / 28,506.54-42,718.50-19,612.74

Finding the Fourth Proportional to 28,506.54, 42,718.50 and 19,612.74

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Solution

The fourth proportional to 28,506.54, 42,718.50 and 19,612.74 is: 29,390.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,506.54 : 42,718.50 = 19,612.74 : x
  2. Step 2: Convert to fraction form
    28,506.54/42,718.50 = 19,612.74/x
  3. Step 3: Cross multiply
    28,506.54x = 42,718.50 × 19,612.74
  4. Step 4: Simplify right side
    28,506.54x = 837,826,833.69
  5. Step 5: Solve for x
    x = 837,826,833.69/28,506.54
  6. Step 6: Final answer
    x = 29,390.69

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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.