Home / 25,187.25-34,740.60-21,384.24

Finding the Fourth Proportional to 25,187.25, 34,740.60 and 21,384.24

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Solution

The fourth proportional to 25,187.25, 34,740.60 and 21,384.24 is: 29,495.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,187.25 : 34,740.60 = 21,384.24 : x
  2. Step 2: Convert to fraction form
    25,187.25/34,740.60 = 21,384.24/x
  3. Step 3: Cross multiply
    25,187.25x = 34,740.60 × 21,384.24
  4. Step 4: Simplify right side
    25,187.25x = 742,901,117.68
  5. Step 5: Solve for x
    x = 742,901,117.68/25,187.25
  6. Step 6: Final answer
    x = 29,495.12

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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.