Home / 27,438.95-37,865.32-15,501.58

Finding the Fourth Proportional to 27,438.95, 37,865.32 and 15,501.58

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Solution

The fourth proportional to 27,438.95, 37,865.32 and 15,501.58 is: 21,391.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,438.95 : 37,865.32 = 15,501.58 : x
  2. Step 2: Convert to fraction form
    27,438.95/37,865.32 = 15,501.58/x
  3. Step 3: Cross multiply
    27,438.95x = 37,865.32 × 15,501.58
  4. Step 4: Simplify right side
    27,438.95x = 586,972,240.98
  5. Step 5: Solve for x
    x = 586,972,240.98/27,438.95
  6. Step 6: Final answer
    x = 21,391.93

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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.