Home / 29,543.04-40,808.28-21,901.80

Finding the Fourth Proportional to 29,543.04, 40,808.28 and 21,901.80

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Solution

The fourth proportional to 29,543.04, 40,808.28 and 21,901.80 is: 30,253.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,543.04 : 40,808.28 = 21,901.80 : x
  2. Step 2: Convert to fraction form
    29,543.04/40,808.28 = 21,901.80/x
  3. Step 3: Cross multiply
    29,543.04x = 40,808.28 × 21,901.80
  4. Step 4: Simplify right side
    29,543.04x = 893,774,786.90
  5. Step 5: Solve for x
    x = 893,774,786.90/29,543.04
  6. Step 6: Final answer
    x = 30,253.31

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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.