Home / 31,312.11-43,209.08-17,880.74

Finding the Fourth Proportional to 31,312.11, 43,209.08 and 17,880.74

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Solution

The fourth proportional to 31,312.11, 43,209.08 and 17,880.74 is: 24,674.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,312.11 : 43,209.08 = 17,880.74 : x
  2. Step 2: Convert to fraction form
    31,312.11/43,209.08 = 17,880.74/x
  3. Step 3: Cross multiply
    31,312.11x = 43,209.08 × 17,880.74
  4. Step 4: Simplify right side
    31,312.11x = 772,610,109.07
  5. Step 5: Solve for x
    x = 772,610,109.07/31,312.11
  6. Step 6: Final answer
    x = 24,674.48

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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.