Home / 25,346.32-34,981.88-15,138.50

Finding the Fourth Proportional to 25,346.32, 34,981.88 and 15,138.50

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Solution

The fourth proportional to 25,346.32, 34,981.88 and 15,138.50 is: 20,893.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,346.32 : 34,981.88 = 15,138.50 : x
  2. Step 2: Convert to fraction form
    25,346.32/34,981.88 = 15,138.50/x
  3. Step 3: Cross multiply
    25,346.32x = 34,981.88 × 15,138.50
  4. Step 4: Simplify right side
    25,346.32x = 529,572,939.78
  5. Step 5: Solve for x
    x = 529,572,939.78/25,346.32
  6. Step 6: Final answer
    x = 20,893.49

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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.