Home / 29,259.52-40,378.16-15,830.72

Finding the Fourth Proportional to 29,259.52, 40,378.16 and 15,830.72

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Solution

The fourth proportional to 29,259.52, 40,378.16 and 15,830.72 is: 21,846.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,259.52 : 40,378.16 = 15,830.72 : x
  2. Step 2: Convert to fraction form
    29,259.52/40,378.16 = 15,830.72/x
  3. Step 3: Cross multiply
    29,259.52x = 40,378.16 × 15,830.72
  4. Step 4: Simplify right side
    29,259.52x = 639,215,345.08
  5. Step 5: Solve for x
    x = 639,215,345.08/29,259.52
  6. Step 6: Final answer
    x = 21,846.41

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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.