Home / 32,930.12-45,447.36-18,785

Finding the Fourth Proportional to 32,930.12, 45,447.36 and 18,785

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Solution

The fourth proportional to 32,930.12, 45,447.36 and 18,785 is: 25,925.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,930.12 : 45,447.36 = 18,785 : x
  2. Step 2: Convert to fraction form
    32,930.12/45,447.36 = 18,785/x
  3. Step 3: Cross multiply
    32,930.12x = 45,447.36 × 18,785
  4. Step 4: Simplify right side
    32,930.12x = 853,728,657.60
  5. Step 5: Solve for x
    x = 853,728,657.60/32,930.12
  6. Step 6: Final answer
    x = 25,925.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.