Home / 28,464.49-42,769.39-21,510.08

Finding the Fourth Proportional to 28,464.49, 42,769.39 and 21,510.08

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Solution

The fourth proportional to 28,464.49, 42,769.39 and 21,510.08 is: 32,320.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,464.49 : 42,769.39 = 21,510.08 : x
  2. Step 2: Convert to fraction form
    28,464.49/42,769.39 = 21,510.08/x
  3. Step 3: Cross multiply
    28,464.49x = 42,769.39 × 21,510.08
  4. Step 4: Simplify right side
    28,464.49x = 919,973,215.63
  5. Step 5: Solve for x
    x = 919,973,215.63/28,464.49
  6. Step 6: Final answer
    x = 32,320.03

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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.