Home / 19,543.95-29,315.13-13,603.68

Finding the Fourth Proportional to 19,543.95, 29,315.13 and 13,603.68

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Solution

The fourth proportional to 19,543.95, 29,315.13 and 13,603.68 is: 20,404.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,543.95 : 29,315.13 = 13,603.68 : x
  2. Step 2: Convert to fraction form
    19,543.95/29,315.13 = 13,603.68/x
  3. Step 3: Cross multiply
    19,543.95x = 29,315.13 × 13,603.68
  4. Step 4: Simplify right side
    19,543.95x = 398,793,647.68
  5. Step 5: Solve for x
    x = 398,793,647.68/19,543.95
  6. Step 6: Final answer
    x = 20,404.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.