Home / 18,711.86-28,127.93-15,054.71

Finding the Fourth Proportional to 18,711.86, 28,127.93 and 15,054.71

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Solution

The fourth proportional to 18,711.86, 28,127.93 and 15,054.71 is: 22,630.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,711.86 : 28,127.93 = 15,054.71 : x
  2. Step 2: Convert to fraction form
    18,711.86/28,127.93 = 15,054.71/x
  3. Step 3: Cross multiply
    18,711.86x = 28,127.93 × 15,054.71
  4. Step 4: Simplify right side
    18,711.86x = 423,457,613.14
  5. Step 5: Solve for x
    x = 423,457,613.14/18,711.86
  6. Step 6: Final answer
    x = 22,630.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.