Home / 21,643.61-32,439.29-10,533.65

Finding the Fourth Proportional to 21,643.61, 32,439.29 and 10,533.65

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Solution

The fourth proportional to 21,643.61, 32,439.29 and 10,533.65 is: 15,787.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,643.61 : 32,439.29 = 10,533.65 : x
  2. Step 2: Convert to fraction form
    21,643.61/32,439.29 = 10,533.65/x
  3. Step 3: Cross multiply
    21,643.61x = 32,439.29 × 10,533.65
  4. Step 4: Simplify right side
    21,643.61x = 341,703,912.24
  5. Step 5: Solve for x
    x = 341,703,912.24/21,643.61
  6. Step 6: Final answer
    x = 15,787.75

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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.