Home / 51,388.04-70,908.86-28,728.29

Finding the Fourth Proportional to 51,388.04, 70,908.86 and 28,728.29

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Solution

The fourth proportional to 51,388.04, 70,908.86 and 28,728.29 is: 39,641.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,388.04 : 70,908.86 = 28,728.29 : x
  2. Step 2: Convert to fraction form
    51,388.04/70,908.86 = 28,728.29/x
  3. Step 3: Cross multiply
    51,388.04x = 70,908.86 × 28,728.29
  4. Step 4: Simplify right side
    51,388.04x = 2,037,089,795.46
  5. Step 5: Solve for x
    x = 2,037,089,795.46/51,388.04
  6. Step 6: Final answer
    x = 39,641.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.