Home / 28,985.28-39,955.68-23,887.68

Finding the Fourth Proportional to 28,985.28, 39,955.68 and 23,887.68

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Solution

The fourth proportional to 28,985.28, 39,955.68 and 23,887.68 is: 32,928.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,985.28 : 39,955.68 = 23,887.68 : x
  2. Step 2: Convert to fraction form
    28,985.28/39,955.68 = 23,887.68/x
  3. Step 3: Cross multiply
    28,985.28x = 39,955.68 × 23,887.68
  4. Step 4: Simplify right side
    28,985.28x = 954,448,498.02
  5. Step 5: Solve for x
    x = 954,448,498.02/28,985.28
  6. Step 6: Final answer
    x = 32,928.73

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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.