Home / 38,988.08-53,799.54-28,784.55

Finding the Fourth Proportional to 38,988.08, 53,799.54 and 28,784.55

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Solution

The fourth proportional to 38,988.08, 53,799.54 and 28,784.55 is: 39,719.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,988.08 : 53,799.54 = 28,784.55 : x
  2. Step 2: Convert to fraction form
    38,988.08/53,799.54 = 28,784.55/x
  3. Step 3: Cross multiply
    38,988.08x = 53,799.54 × 28,784.55
  4. Step 4: Simplify right side
    38,988.08x = 1,548,595,530.21
  5. Step 5: Solve for x
    x = 1,548,595,530.21/38,988.08
  6. Step 6: Final answer
    x = 39,719.72

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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.