Home / 21,702.02-29,895.17-18,504.90

Finding the Fourth Proportional to 21,702.02, 29,895.17 and 18,504.90

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Solution

The fourth proportional to 21,702.02, 29,895.17 and 18,504.90 is: 25,491.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,702.02 : 29,895.17 = 18,504.90 : x
  2. Step 2: Convert to fraction form
    21,702.02/29,895.17 = 18,504.90/x
  3. Step 3: Cross multiply
    21,702.02x = 29,895.17 × 18,504.90
  4. Step 4: Simplify right side
    21,702.02x = 553,207,038.81
  5. Step 5: Solve for x
    x = 553,207,038.81/21,702.02
  6. Step 6: Final answer
    x = 25,491.04

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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.