Home / 39,981.06-55,169.10-22,985.64

Finding the Fourth Proportional to 39,981.06, 55,169.10 and 22,985.64

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Solution

The fourth proportional to 39,981.06, 55,169.10 and 22,985.64 is: 31,717.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,981.06 : 55,169.10 = 22,985.64 : x
  2. Step 2: Convert to fraction form
    39,981.06/55,169.10 = 22,985.64/x
  3. Step 3: Cross multiply
    39,981.06x = 55,169.10 × 22,985.64
  4. Step 4: Simplify right side
    39,981.06x = 1,268,097,071.72
  5. Step 5: Solve for x
    x = 1,268,097,071.72/39,981.06
  6. Step 6: Final answer
    x = 31,717.45

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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.