Home / 19,711.59-27,202.02-12,638.02

Finding the Fourth Proportional to 19,711.59, 27,202.02 and 12,638.02

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Solution

The fourth proportional to 19,711.59, 27,202.02 and 12,638.02 is: 17,440.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,711.59 : 27,202.02 = 12,638.02 : x
  2. Step 2: Convert to fraction form
    19,711.59/27,202.02 = 12,638.02/x
  3. Step 3: Cross multiply
    19,711.59x = 27,202.02 × 12,638.02
  4. Step 4: Simplify right side
    19,711.59x = 343,779,652.19
  5. Step 5: Solve for x
    x = 343,779,652.19/19,711.59
  6. Step 6: Final answer
    x = 17,440.48

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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.