Home / 27,762.64-38,312.35-15,187.39

Finding the Fourth Proportional to 27,762.64, 38,312.35 and 15,187.39

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Solution

The fourth proportional to 27,762.64, 38,312.35 and 15,187.39 is: 20,958.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,762.64 : 38,312.35 = 15,187.39 : x
  2. Step 2: Convert to fraction form
    27,762.64/38,312.35 = 15,187.39/x
  3. Step 3: Cross multiply
    27,762.64x = 38,312.35 × 15,187.39
  4. Step 4: Simplify right side
    27,762.64x = 581,864,601.27
  5. Step 5: Solve for x
    x = 581,864,601.27/27,762.64
  6. Step 6: Final answer
    x = 20,958.55

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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.