Home / 51,040.15-70,438.59-28,384.21

Finding the Fourth Proportional to 51,040.15, 70,438.59 and 28,384.21

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Solution

The fourth proportional to 51,040.15, 70,438.59 and 28,384.21 is: 39,171.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,040.15 : 70,438.59 = 28,384.21 : x
  2. Step 2: Convert to fraction form
    51,040.15/70,438.59 = 28,384.21/x
  3. Step 3: Cross multiply
    51,040.15x = 70,438.59 × 28,384.21
  4. Step 4: Simplify right side
    51,040.15x = 1,999,343,730.66
  5. Step 5: Solve for x
    x = 1,999,343,730.66/51,040.15
  6. Step 6: Final answer
    x = 39,171.98

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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.