Home / 27,372.12-37,770.64-15,437.28

Finding the Fourth Proportional to 27,372.12, 37,770.64 and 15,437.28

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Solution

The fourth proportional to 27,372.12, 37,770.64 and 15,437.28 is: 21,301.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,372.12 : 37,770.64 = 15,437.28 : x
  2. Step 2: Convert to fraction form
    27,372.12/37,770.64 = 15,437.28/x
  3. Step 3: Cross multiply
    27,372.12x = 37,770.64 × 15,437.28
  4. Step 4: Simplify right side
    27,372.12x = 583,075,945.46
  5. Step 5: Solve for x
    x = 583,075,945.46/27,372.12
  6. Step 6: Final answer
    x = 21,301.82

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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.