Home / 31,365.90-43,284.44-17,938.40

Finding the Fourth Proportional to 31,365.90, 43,284.44 and 17,938.40

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Solution

The fourth proportional to 31,365.90, 43,284.44 and 17,938.40 is: 24,754.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,365.90 : 43,284.44 = 17,938.40 : x
  2. Step 2: Convert to fraction form
    31,365.90/43,284.44 = 17,938.40/x
  3. Step 3: Cross multiply
    31,365.90x = 43,284.44 × 17,938.40
  4. Step 4: Simplify right side
    31,365.90x = 776,453,598.50
  5. Step 5: Solve for x
    x = 776,453,598.50/31,365.90
  6. Step 6: Final answer
    x = 24,754.70

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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.