Home / 25,309.49-34,967.77-21,572.15

Finding the Fourth Proportional to 25,309.49, 34,967.77 and 21,572.15

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Solution

The fourth proportional to 25,309.49, 34,967.77 and 21,572.15 is: 29,804.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,309.49 : 34,967.77 = 21,572.15 : x
  2. Step 2: Convert to fraction form
    25,309.49/34,967.77 = 21,572.15/x
  3. Step 3: Cross multiply
    25,309.49x = 34,967.77 × 21,572.15
  4. Step 4: Simplify right side
    25,309.49x = 754,329,750.84
  5. Step 5: Solve for x
    x = 754,329,750.84/25,309.49
  6. Step 6: Final answer
    x = 29,804.23

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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.