Home / 25,897.36-38,670.37-20,572.60

Finding the Fourth Proportional to 25,897.36, 38,670.37 and 20,572.60

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Solution

The fourth proportional to 25,897.36, 38,670.37 and 20,572.60 is: 30,719.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,897.36 : 38,670.37 = 20,572.60 : x
  2. Step 2: Convert to fraction form
    25,897.36/38,670.37 = 20,572.60/x
  3. Step 3: Cross multiply
    25,897.36x = 38,670.37 × 20,572.60
  4. Step 4: Simplify right side
    25,897.36x = 795,549,951.00
  5. Step 5: Solve for x
    x = 795,549,951.00/25,897.36
  6. Step 6: Final answer
    x = 30,719.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.