Home / 31,430.90-43,374.65-17,283.74

Finding the Fourth Proportional to 31,430.90, 43,374.65 and 17,283.74

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Solution

The fourth proportional to 31,430.90, 43,374.65 and 17,283.74 is: 23,851.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,430.90 : 43,374.65 = 17,283.74 : x
  2. Step 2: Convert to fraction form
    31,430.90/43,374.65 = 17,283.74/x
  3. Step 3: Cross multiply
    31,430.90x = 43,374.65 × 17,283.74
  4. Step 4: Simplify right side
    31,430.90x = 749,675,869.90
  5. Step 5: Solve for x
    x = 749,675,869.90/31,430.90
  6. Step 6: Final answer
    x = 23,851.56

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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.