Home / 22,563.06-31,136-12,490.80

Finding the Fourth Proportional to 22,563.06, 31,136 and 12,490.80

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Solution

The fourth proportional to 22,563.06, 31,136 and 12,490.80 is: 17,236.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,563.06 : 31,136 = 12,490.80 : x
  2. Step 2: Convert to fraction form
    22,563.06/31,136 = 12,490.80/x
  3. Step 3: Cross multiply
    22,563.06x = 31,136 × 12,490.80
  4. Step 4: Simplify right side
    22,563.06x = 388,913,548.80
  5. Step 5: Solve for x
    x = 388,913,548.80/22,563.06
  6. Step 6: Final answer
    x = 17,236.74

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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.