Home / 18,904.86-28,357.29-5,053.50

Finding the Fourth Proportional to 18,904.86, 28,357.29 and 5,053.50

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Solution

The fourth proportional to 18,904.86, 28,357.29 and 5,053.50 is: 7,580.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,904.86 : 28,357.29 = 5,053.50 : x
  2. Step 2: Convert to fraction form
    18,904.86/28,357.29 = 5,053.50/x
  3. Step 3: Cross multiply
    18,904.86x = 28,357.29 × 5,053.50
  4. Step 4: Simplify right side
    18,904.86x = 143,303,565.02
  5. Step 5: Solve for x
    x = 143,303,565.02/18,904.86
  6. Step 6: Final answer
    x = 7,580.25

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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.