Home / 21,260.07-29,345.49-14,543.15

Finding the Fourth Proportional to 21,260.07, 29,345.49 and 14,543.15

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Solution

The fourth proportional to 21,260.07, 29,345.49 and 14,543.15 is: 20,074.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,260.07 : 29,345.49 = 14,543.15 : x
  2. Step 2: Convert to fraction form
    21,260.07/29,345.49 = 14,543.15/x
  3. Step 3: Cross multiply
    21,260.07x = 29,345.49 × 14,543.15
  4. Step 4: Simplify right side
    21,260.07x = 426,775,716.17
  5. Step 5: Solve for x
    x = 426,775,716.17/21,260.07
  6. Step 6: Final answer
    x = 20,074.05

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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.