Home / 28,655.04-39,561.28-18,736.32

Finding the Fourth Proportional to 28,655.04, 39,561.28 and 18,736.32

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Solution

The fourth proportional to 28,655.04, 39,561.28 and 18,736.32 is: 25,867.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,655.04 : 39,561.28 = 18,736.32 : x
  2. Step 2: Convert to fraction form
    28,655.04/39,561.28 = 18,736.32/x
  3. Step 3: Cross multiply
    28,655.04x = 39,561.28 × 18,736.32
  4. Step 4: Simplify right side
    28,655.04x = 741,232,801.69
  5. Step 5: Solve for x
    x = 741,232,801.69/28,655.04
  6. Step 6: Final answer
    x = 25,867.45

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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.