Home / 25,929.61-35,783.31-15,319.22

Finding the Fourth Proportional to 25,929.61, 35,783.31 and 15,319.22

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Solution

The fourth proportional to 25,929.61, 35,783.31 and 15,319.22 is: 21,140.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,929.61 : 35,783.31 = 15,319.22 : x
  2. Step 2: Convert to fraction form
    25,929.61/35,783.31 = 15,319.22/x
  3. Step 3: Cross multiply
    25,929.61x = 35,783.31 × 15,319.22
  4. Step 4: Simplify right side
    25,929.61x = 548,172,276.75
  5. Step 5: Solve for x
    x = 548,172,276.75/25,929.61
  6. Step 6: Final answer
    x = 21,140.79

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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.