Home / 21,457.62-29,614.95-12,510.36

Finding the Fourth Proportional to 21,457.62, 29,614.95 and 12,510.36

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Solution

The fourth proportional to 21,457.62, 29,614.95 and 12,510.36 is: 17,266.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,457.62 : 29,614.95 = 12,510.36 : x
  2. Step 2: Convert to fraction form
    21,457.62/29,614.95 = 12,510.36/x
  3. Step 3: Cross multiply
    21,457.62x = 29,614.95 × 12,510.36
  4. Step 4: Simplify right side
    21,457.62x = 370,493,685.88
  5. Step 5: Solve for x
    x = 370,493,685.88/21,457.62
  6. Step 6: Final answer
    x = 17,266.30

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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.