Home / 28,927.71-43,390.76-9,207.45

Finding the Fourth Proportional to 28,927.71, 43,390.76 and 9,207.45

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Solution

The fourth proportional to 28,927.71, 43,390.76 and 9,207.45 is: 13,810.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,927.71 : 43,390.76 = 9,207.45 : x
  2. Step 2: Convert to fraction form
    28,927.71/43,390.76 = 9,207.45/x
  3. Step 3: Cross multiply
    28,927.71x = 43,390.76 × 9,207.45
  4. Step 4: Simplify right side
    28,927.71x = 399,518,207.12
  5. Step 5: Solve for x
    x = 399,518,207.12/28,927.71
  6. Step 6: Final answer
    x = 13,810.92

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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.