Home / 29,683.20-40,946.40-20,265.60

Finding the Fourth Proportional to 29,683.20, 40,946.40 and 20,265.60

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Solution

The fourth proportional to 29,683.20, 40,946.40 and 20,265.60 is: 27,955.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,683.20 : 40,946.40 = 20,265.60 : x
  2. Step 2: Convert to fraction form
    29,683.20/40,946.40 = 20,265.60/x
  3. Step 3: Cross multiply
    29,683.20x = 40,946.40 × 20,265.60
  4. Step 4: Simplify right side
    29,683.20x = 829,803,363.84
  5. Step 5: Solve for x
    x = 829,803,363.84/29,683.20
  6. Step 6: Final answer
    x = 27,955.32

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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.