Home / 33,320.16-45,970.80-21,995.28

Finding the Fourth Proportional to 33,320.16, 45,970.80 and 21,995.28

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Solution

The fourth proportional to 33,320.16, 45,970.80 and 21,995.28 is: 30,346.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,320.16 : 45,970.80 = 21,995.28 : x
  2. Step 2: Convert to fraction form
    33,320.16/45,970.80 = 21,995.28/x
  3. Step 3: Cross multiply
    33,320.16x = 45,970.80 × 21,995.28
  4. Step 4: Simplify right side
    33,320.16x = 1,011,140,617.82
  5. Step 5: Solve for x
    x = 1,011,140,617.82/33,320.16
  6. Step 6: Final answer
    x = 30,346.21

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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.