Home / 53,330.15-79,994.95-13,887.20

Finding the Fourth Proportional to 53,330.15, 79,994.95 and 13,887.20

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Solution

The fourth proportional to 53,330.15, 79,994.95 and 13,887.20 is: 20,830.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,330.15 : 79,994.95 = 13,887.20 : x
  2. Step 2: Convert to fraction form
    53,330.15/79,994.95 = 13,887.20/x
  3. Step 3: Cross multiply
    53,330.15x = 79,994.95 × 13,887.20
  4. Step 4: Simplify right side
    53,330.15x = 1,110,906,034.91
  5. Step 5: Solve for x
    x = 1,110,906,034.91/53,330.15
  6. Step 6: Final answer
    x = 20,830.73

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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.