Home / 19,615.02-27,050.28-15,131.68

Finding the Fourth Proportional to 19,615.02, 27,050.28 and 15,131.68

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Solution

The fourth proportional to 19,615.02, 27,050.28 and 15,131.68 is: 20,867.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,615.02 : 27,050.28 = 15,131.68 : x
  2. Step 2: Convert to fraction form
    19,615.02/27,050.28 = 15,131.68/x
  3. Step 3: Cross multiply
    19,615.02x = 27,050.28 × 15,131.68
  4. Step 4: Simplify right side
    19,615.02x = 409,316,180.87
  5. Step 5: Solve for x
    x = 409,316,180.87/19,615.02
  6. Step 6: Final answer
    x = 20,867.49

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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.