Home / 21,702.32-29,947.56-12,271.76

Finding the Fourth Proportional to 21,702.32, 29,947.56 and 12,271.76

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Solution

The fourth proportional to 21,702.32, 29,947.56 and 12,271.76 is: 16,934.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,702.32 : 29,947.56 = 12,271.76 : x
  2. Step 2: Convert to fraction form
    21,702.32/29,947.56 = 12,271.76/x
  3. Step 3: Cross multiply
    21,702.32x = 29,947.56 × 12,271.76
  4. Step 4: Simplify right side
    21,702.32x = 367,509,268.91
  5. Step 5: Solve for x
    x = 367,509,268.91/21,702.32
  6. Step 6: Final answer
    x = 16,934.10

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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.