Home / 27,135.83-37,448.60-15,803.50

Finding the Fourth Proportional to 27,135.83, 37,448.60 and 15,803.50

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Solution

The fourth proportional to 27,135.83, 37,448.60 and 15,803.50 is: 21,809.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,135.83 : 37,448.60 = 15,803.50 : x
  2. Step 2: Convert to fraction form
    27,135.83/37,448.60 = 15,803.50/x
  3. Step 3: Cross multiply
    27,135.83x = 37,448.60 × 15,803.50
  4. Step 4: Simplify right side
    27,135.83x = 591,818,950.10
  5. Step 5: Solve for x
    x = 591,818,950.10/27,135.83
  6. Step 6: Final answer
    x = 21,809.50

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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.