Home / 35,685.78-53,455.98-16,908.90

Finding the Fourth Proportional to 35,685.78, 53,455.98 and 16,908.90

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Solution

The fourth proportional to 35,685.78, 53,455.98 and 16,908.90 is: 25,328.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,685.78 : 53,455.98 = 16,908.90 : x
  2. Step 2: Convert to fraction form
    35,685.78/53,455.98 = 16,908.90/x
  3. Step 3: Cross multiply
    35,685.78x = 53,455.98 × 16,908.90
  4. Step 4: Simplify right side
    35,685.78x = 903,881,820.22
  5. Step 5: Solve for x
    x = 903,881,820.22/35,685.78
  6. Step 6: Final answer
    x = 25,328.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.