Home / 21,319.28-32,011.72-19,001.06

Finding the Fourth Proportional to 21,319.28, 32,011.72 and 19,001.06

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Solution

The fourth proportional to 21,319.28, 32,011.72 and 19,001.06 is: 28,530.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,319.28 : 32,011.72 = 19,001.06 : x
  2. Step 2: Convert to fraction form
    21,319.28/32,011.72 = 19,001.06/x
  3. Step 3: Cross multiply
    21,319.28x = 32,011.72 × 19,001.06
  4. Step 4: Simplify right side
    21,319.28x = 608,256,357.36
  5. Step 5: Solve for x
    x = 608,256,357.36/21,319.28
  6. Step 6: Final answer
    x = 28,530.82

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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.