Home / 40,887.30-61,332.98-21,204.30

Finding the Fourth Proportional to 40,887.30, 61,332.98 and 21,204.30

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Solution

The fourth proportional to 40,887.30, 61,332.98 and 21,204.30 is: 31,807.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,887.30 : 61,332.98 = 21,204.30 : x
  2. Step 2: Convert to fraction form
    40,887.30/61,332.98 = 21,204.30/x
  3. Step 3: Cross multiply
    40,887.30x = 61,332.98 × 21,204.30
  4. Step 4: Simplify right side
    40,887.30x = 1,300,522,801.79
  5. Step 5: Solve for x
    x = 1,300,522,801.79/40,887.30
  6. Step 6: Final answer
    x = 31,807.50

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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.