Home / 35,088.78-48,416.90-19,981.72

Finding the Fourth Proportional to 35,088.78, 48,416.90 and 19,981.72

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Solution

The fourth proportional to 35,088.78, 48,416.90 and 19,981.72 is: 27,571.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,088.78 : 48,416.90 = 19,981.72 : x
  2. Step 2: Convert to fraction form
    35,088.78/48,416.90 = 19,981.72/x
  3. Step 3: Cross multiply
    35,088.78x = 48,416.90 × 19,981.72
  4. Step 4: Simplify right side
    35,088.78x = 967,452,939.07
  5. Step 5: Solve for x
    x = 967,452,939.07/35,088.78
  6. Step 6: Final answer
    x = 27,571.58

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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.