Home / 42,981.35-64,449.07-14,894.20

Finding the Fourth Proportional to 42,981.35, 64,449.07 and 14,894.20

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Solution

The fourth proportional to 42,981.35, 64,449.07 and 14,894.20 is: 22,333.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,981.35 : 64,449.07 = 14,894.20 : x
  2. Step 2: Convert to fraction form
    42,981.35/64,449.07 = 14,894.20/x
  3. Step 3: Cross multiply
    42,981.35x = 64,449.07 × 14,894.20
  4. Step 4: Simplify right side
    42,981.35x = 959,917,338.39
  5. Step 5: Solve for x
    x = 959,917,338.39/42,981.35
  6. Step 6: Final answer
    x = 22,333.35

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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.