Home / 28,971.81-43,437.20-14,925.80

Finding the Fourth Proportional to 28,971.81, 43,437.20 and 14,925.80

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Solution

The fourth proportional to 28,971.81, 43,437.20 and 14,925.80 is: 22,378.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,971.81 : 43,437.20 = 14,925.80 : x
  2. Step 2: Convert to fraction form
    28,971.81/43,437.20 = 14,925.80/x
  3. Step 3: Cross multiply
    28,971.81x = 43,437.20 × 14,925.80
  4. Step 4: Simplify right side
    28,971.81x = 648,334,993.72
  5. Step 5: Solve for x
    x = 648,334,993.72/28,971.81
  6. Step 6: Final answer
    x = 22,378.13

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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.