Home / 28,701.04-43,055.45-9,978.66

Finding the Fourth Proportional to 28,701.04, 43,055.45 and 9,978.66

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Solution

The fourth proportional to 28,701.04, 43,055.45 and 9,978.66 is: 14,969.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,701.04 : 43,055.45 = 9,978.66 : x
  2. Step 2: Convert to fraction form
    28,701.04/43,055.45 = 9,978.66/x
  3. Step 3: Cross multiply
    28,701.04x = 43,055.45 × 9,978.66
  4. Step 4: Simplify right side
    28,701.04x = 429,635,602.27
  5. Step 5: Solve for x
    x = 429,635,602.27/28,701.04
  6. Step 6: Final answer
    x = 14,969.34

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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.