Home / 37,985.54-52,417.35-20,989.60

Finding the Fourth Proportional to 37,985.54, 52,417.35 and 20,989.60

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Solution

The fourth proportional to 37,985.54, 52,417.35 and 20,989.60 is: 28,964.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,985.54 : 52,417.35 = 20,989.60 : x
  2. Step 2: Convert to fraction form
    37,985.54/52,417.35 = 20,989.60/x
  3. Step 3: Cross multiply
    37,985.54x = 52,417.35 × 20,989.60
  4. Step 4: Simplify right side
    37,985.54x = 1,100,219,078.52
  5. Step 5: Solve for x
    x = 1,100,219,078.52/37,985.54
  6. Step 6: Final answer
    x = 28,964.16

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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.