Home / 40,887.35-61,331.02-12,807.64

Finding the Fourth Proportional to 40,887.35, 61,331.02 and 12,807.64

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Solution

The fourth proportional to 40,887.35, 61,331.02 and 12,807.64 is: 19,211.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,887.35 : 61,331.02 = 12,807.64 : x
  2. Step 2: Convert to fraction form
    40,887.35/61,331.02 = 12,807.64/x
  3. Step 3: Cross multiply
    40,887.35x = 61,331.02 × 12,807.64
  4. Step 4: Simplify right side
    40,887.35x = 785,505,624.99
  5. Step 5: Solve for x
    x = 785,505,624.99/40,887.35
  6. Step 6: Final answer
    x = 19,211.46

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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.