Home / 51,347.31-70,858.50-28,686.63

Finding the Fourth Proportional to 51,347.31, 70,858.50 and 28,686.63

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Solution

The fourth proportional to 51,347.31, 70,858.50 and 28,686.63 is: 39,587.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,347.31 : 70,858.50 = 28,686.63 : x
  2. Step 2: Convert to fraction form
    51,347.31/70,858.50 = 28,686.63/x
  3. Step 3: Cross multiply
    51,347.31x = 70,858.50 × 28,686.63
  4. Step 4: Simplify right side
    51,347.31x = 2,032,691,571.86
  5. Step 5: Solve for x
    x = 2,032,691,571.86/51,347.31
  6. Step 6: Final answer
    x = 39,587.11

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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.