Home / 42,016.40-63,024.60-20,948.30

Finding the Fourth Proportional to 42,016.40, 63,024.60 and 20,948.30

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Solution

The fourth proportional to 42,016.40, 63,024.60 and 20,948.30 is: 31,422.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,016.40 : 63,024.60 = 20,948.30 : x
  2. Step 2: Convert to fraction form
    42,016.40/63,024.60 = 20,948.30/x
  3. Step 3: Cross multiply
    42,016.40x = 63,024.60 × 20,948.30
  4. Step 4: Simplify right side
    42,016.40x = 1,320,258,228.18
  5. Step 5: Solve for x
    x = 1,320,258,228.18/42,016.40
  6. Step 6: Final answer
    x = 31,422.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.