Home / 51,009.31-70,392.34-28,347.84

Finding the Fourth Proportional to 51,009.31, 70,392.34 and 28,347.84

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Solution

The fourth proportional to 51,009.31, 70,392.34 and 28,347.84 is: 39,119.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,009.31 : 70,392.34 = 28,347.84 : x
  2. Step 2: Convert to fraction form
    51,009.31/70,392.34 = 28,347.84/x
  3. Step 3: Cross multiply
    51,009.31x = 70,392.34 × 28,347.84
  4. Step 4: Simplify right side
    51,009.31x = 1,995,471,075.05
  5. Step 5: Solve for x
    x = 1,995,471,075.05/51,009.31
  6. Step 6: Final answer
    x = 39,119.74

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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.