Home / 51,047.32-70,443.12-28,387.84

Finding the Fourth Proportional to 51,047.32, 70,443.12 and 28,387.84

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Solution

The fourth proportional to 51,047.32, 70,443.12 and 28,387.84 is: 39,174.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,047.32 : 70,443.12 = 28,387.84 : x
  2. Step 2: Convert to fraction form
    51,047.32/70,443.12 = 28,387.84/x
  3. Step 3: Cross multiply
    51,047.32x = 70,443.12 × 28,387.84
  4. Step 4: Simplify right side
    51,047.32x = 1,999,728,019.66
  5. Step 5: Solve for x
    x = 1,999,728,019.66/51,047.32
  6. Step 6: Final answer
    x = 39,174.01

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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.