Home / 31,312.69-43,213.28-18,573.41

Finding the Fourth Proportional to 31,312.69, 43,213.28 and 18,573.41

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Solution

The fourth proportional to 31,312.69, 43,213.28 and 18,573.41 is: 25,632.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,312.69 : 43,213.28 = 18,573.41 : x
  2. Step 2: Convert to fraction form
    31,312.69/43,213.28 = 18,573.41/x
  3. Step 3: Cross multiply
    31,312.69x = 43,213.28 × 18,573.41
  4. Step 4: Simplify right side
    31,312.69x = 802,617,966.88
  5. Step 5: Solve for x
    x = 802,617,966.88/31,312.69
  6. Step 6: Final answer
    x = 25,632.35

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Double scale
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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.