Home / 28,125.78-42,209.44-13,334.74

Finding the Fourth Proportional to 28,125.78, 42,209.44 and 13,334.74

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Solution

The fourth proportional to 28,125.78, 42,209.44 and 13,334.74 is: 20,011.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,125.78 : 42,209.44 = 13,334.74 : x
  2. Step 2: Convert to fraction form
    28,125.78/42,209.44 = 13,334.74/x
  3. Step 3: Cross multiply
    28,125.78x = 42,209.44 × 13,334.74
  4. Step 4: Simplify right side
    28,125.78x = 562,852,006.51
  5. Step 5: Solve for x
    x = 562,852,006.51/28,125.78
  6. Step 6: Final answer
    x = 20,011.96

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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.