Home / 25,397.40-35,051.54-15,331.60

Finding the Fourth Proportional to 25,397.40, 35,051.54 and 15,331.60

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Solution

The fourth proportional to 25,397.40, 35,051.54 and 15,331.60 is: 21,159.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,397.40 : 35,051.54 = 15,331.60 : x
  2. Step 2: Convert to fraction form
    25,397.40/35,051.54 = 15,331.60/x
  3. Step 3: Cross multiply
    25,397.40x = 35,051.54 × 15,331.60
  4. Step 4: Simplify right side
    25,397.40x = 537,396,190.66
  5. Step 5: Solve for x
    x = 537,396,190.66/25,397.40
  6. Step 6: Final answer
    x = 21,159.50

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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.