Home / 27,807.78-38,374.86-15,232.50

Finding the Fourth Proportional to 27,807.78, 38,374.86 and 15,232.50

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Solution

The fourth proportional to 27,807.78, 38,374.86 and 15,232.50 is: 21,020.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,807.78 : 38,374.86 = 15,232.50 : x
  2. Step 2: Convert to fraction form
    27,807.78/38,374.86 = 15,232.50/x
  3. Step 3: Cross multiply
    27,807.78x = 38,374.86 × 15,232.50
  4. Step 4: Simplify right side
    27,807.78x = 584,545,054.95
  5. Step 5: Solve for x
    x = 584,545,054.95/27,807.78
  6. Step 6: Final answer
    x = 21,020.92

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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.