Home / 25,319.70-34,938.17-13,988.51

Finding the Fourth Proportional to 25,319.70, 34,938.17 and 13,988.51

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Solution

The fourth proportional to 25,319.70, 34,938.17 and 13,988.51 is: 19,302.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,319.70 : 34,938.17 = 13,988.51 : x
  2. Step 2: Convert to fraction form
    25,319.70/34,938.17 = 13,988.51/x
  3. Step 3: Cross multiply
    25,319.70x = 34,938.17 × 13,988.51
  4. Step 4: Simplify right side
    25,319.70x = 488,732,879.27
  5. Step 5: Solve for x
    x = 488,732,879.27/25,319.70
  6. Step 6: Final answer
    x = 19,302.48

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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.