Home / 21,307.70-29,381.54-14,506.13

Finding the Fourth Proportional to 21,307.70, 29,381.54 and 14,506.13

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Solution

The fourth proportional to 21,307.70, 29,381.54 and 14,506.13 is: 20,002.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,307.70 : 29,381.54 = 14,506.13 : x
  2. Step 2: Convert to fraction form
    21,307.70/29,381.54 = 14,506.13/x
  3. Step 3: Cross multiply
    21,307.70x = 29,381.54 × 14,506.13
  4. Step 4: Simplify right side
    21,307.70x = 426,212,328.20
  5. Step 5: Solve for x
    x = 426,212,328.20/21,307.70
  6. Step 6: Final answer
    x = 20,002.74

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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.