Home / 40,887.10-61,330.65-12,807.39

Finding the Fourth Proportional to 40,887.10, 61,330.65 and 12,807.39

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Solution

The fourth proportional to 40,887.10, 61,330.65 and 12,807.39 is: 19,211.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,887.10 : 61,330.65 = 12,807.39 : x
  2. Step 2: Convert to fraction form
    40,887.10/61,330.65 = 12,807.39/x
  3. Step 3: Cross multiply
    40,887.10x = 61,330.65 × 12,807.39
  4. Step 4: Simplify right side
    40,887.10x = 785,485,553.50
  5. Step 5: Solve for x
    x = 785,485,553.50/40,887.10
  6. Step 6: Final answer
    x = 19,211.09

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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.