Home / 28,613.15-42,929.06-13,823.76

Finding the Fourth Proportional to 28,613.15, 42,929.06 and 13,823.76

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Solution

The fourth proportional to 28,613.15, 42,929.06 and 13,823.76 is: 20,740.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,613.15 : 42,929.06 = 13,823.76 : x
  2. Step 2: Convert to fraction form
    28,613.15/42,929.06 = 13,823.76/x
  3. Step 3: Cross multiply
    28,613.15x = 42,929.06 × 13,823.76
  4. Step 4: Simplify right side
    28,613.15x = 593,440,953.35
  5. Step 5: Solve for x
    x = 593,440,953.35/28,613.15
  6. Step 6: Final answer
    x = 20,740.15

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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.