Home / 40,036.72-55,250.67-21,887.51

Finding the Fourth Proportional to 40,036.72, 55,250.67 and 21,887.51

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Solution

The fourth proportional to 40,036.72, 55,250.67 and 21,887.51 is: 30,204.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,036.72 : 55,250.67 = 21,887.51 : x
  2. Step 2: Convert to fraction form
    40,036.72/55,250.67 = 21,887.51/x
  3. Step 3: Cross multiply
    40,036.72x = 55,250.67 × 21,887.51
  4. Step 4: Simplify right side
    40,036.72x = 1,209,299,592.13
  5. Step 5: Solve for x
    x = 1,209,299,592.13/40,036.72
  6. Step 6: Final answer
    x = 30,204.77

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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.