Home / 28,125.42-42,208.88-13,334.28

Finding the Fourth Proportional to 28,125.42, 42,208.88 and 13,334.28

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Solution

The fourth proportional to 28,125.42, 42,208.88 and 13,334.28 is: 20,011.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,125.42 : 42,208.88 = 13,334.28 : x
  2. Step 2: Convert to fraction form
    28,125.42/42,208.88 = 13,334.28/x
  3. Step 3: Cross multiply
    28,125.42x = 42,208.88 × 13,334.28
  4. Step 4: Simplify right side
    28,125.42x = 562,824,957.74
  5. Step 5: Solve for x
    x = 562,824,957.74/28,125.42
  6. Step 6: Final answer
    x = 20,011.26

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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.