Home / 25,346.16-34,980.63-15,279.75

Finding the Fourth Proportional to 25,346.16, 34,980.63 and 15,279.75

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Solution

The fourth proportional to 25,346.16, 34,980.63 and 15,279.75 is: 21,087.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,346.16 : 34,980.63 = 15,279.75 : x
  2. Step 2: Convert to fraction form
    25,346.16/34,980.63 = 15,279.75/x
  3. Step 3: Cross multiply
    25,346.16x = 34,980.63 × 15,279.75
  4. Step 4: Simplify right side
    25,346.16x = 534,495,281.24
  5. Step 5: Solve for x
    x = 534,495,281.24/25,346.16
  6. Step 6: Final answer
    x = 21,087.82

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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.