Home / 40,037.72-55,252.05-21,888.51

Finding the Fourth Proportional to 40,037.72, 55,252.05 and 21,888.51

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Solution

The fourth proportional to 40,037.72, 55,252.05 and 21,888.51 is: 30,206.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,037.72 : 55,252.05 = 21,888.51 : x
  2. Step 2: Convert to fraction form
    40,037.72/55,252.05 = 21,888.51/x
  3. Step 3: Cross multiply
    40,037.72x = 55,252.05 × 21,888.51
  4. Step 4: Simplify right side
    40,037.72x = 1,209,385,048.95
  5. Step 5: Solve for x
    x = 1,209,385,048.95/40,037.72
  6. Step 6: Final answer
    x = 30,206.14

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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.