Home / 21,506.68-29,681.02-12,554.76

Finding the Fourth Proportional to 21,506.68, 29,681.02 and 12,554.76

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Solution

The fourth proportional to 21,506.68, 29,681.02 and 12,554.76 is: 17,326.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,506.68 : 29,681.02 = 12,554.76 : x
  2. Step 2: Convert to fraction form
    21,506.68/29,681.02 = 12,554.76/x
  3. Step 3: Cross multiply
    21,506.68x = 29,681.02 × 12,554.76
  4. Step 4: Simplify right side
    21,506.68x = 372,638,082.66
  5. Step 5: Solve for x
    x = 372,638,082.66/21,506.68
  6. Step 6: Final answer
    x = 17,326.62

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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.