Home / 19,880.10-27,437.13-12,827.04

Finding the Fourth Proportional to 19,880.10, 27,437.13 and 12,827.04

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Solution

The fourth proportional to 19,880.10, 27,437.13 and 12,827.04 is: 17,702.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,880.10 : 27,437.13 = 12,827.04 : x
  2. Step 2: Convert to fraction form
    19,880.10/27,437.13 = 12,827.04/x
  3. Step 3: Cross multiply
    19,880.10x = 27,437.13 × 12,827.04
  4. Step 4: Simplify right side
    19,880.10x = 351,937,164.00
  5. Step 5: Solve for x
    x = 351,937,164.00/19,880.10
  6. Step 6: Final answer
    x = 17,702.99

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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.