Home / 21,262.37-29,304.95-15,585.08

Finding the Fourth Proportional to 21,262.37, 29,304.95 and 15,585.08

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Solution

The fourth proportional to 21,262.37, 29,304.95 and 15,585.08 is: 21,480.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,262.37 : 29,304.95 = 15,585.08 : x
  2. Step 2: Convert to fraction form
    21,262.37/29,304.95 = 15,585.08/x
  3. Step 3: Cross multiply
    21,262.37x = 29,304.95 × 15,585.08
  4. Step 4: Simplify right side
    21,262.37x = 456,719,765.70
  5. Step 5: Solve for x
    x = 456,719,765.70/21,262.37
  6. Step 6: Final answer
    x = 21,480.20

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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.