Home / 28,778.04-43,158.51-12,973.95

Finding the Fourth Proportional to 28,778.04, 43,158.51 and 12,973.95

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Solution

The fourth proportional to 28,778.04, 43,158.51 and 12,973.95 is: 19,457.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,778.04 : 43,158.51 = 12,973.95 : x
  2. Step 2: Convert to fraction form
    28,778.04/43,158.51 = 12,973.95/x
  3. Step 3: Cross multiply
    28,778.04x = 43,158.51 × 12,973.95
  4. Step 4: Simplify right side
    28,778.04x = 559,936,350.81
  5. Step 5: Solve for x
    x = 559,936,350.81/28,778.04
  6. Step 6: Final answer
    x = 19,457.07

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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.