Home / 21,475.80-32,200.56-19,642.32

Finding the Fourth Proportional to 21,475.80, 32,200.56 and 19,642.32

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Solution

The fourth proportional to 21,475.80, 32,200.56 and 19,642.32 is: 29,451.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,475.80 : 32,200.56 = 19,642.32 : x
  2. Step 2: Convert to fraction form
    21,475.80/32,200.56 = 19,642.32/x
  3. Step 3: Cross multiply
    21,475.80x = 32,200.56 × 19,642.32
  4. Step 4: Simplify right side
    21,475.80x = 632,493,703.70
  5. Step 5: Solve for x
    x = 632,493,703.70/21,475.80
  6. Step 6: Final answer
    x = 29,451.46

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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.