Home / 24,428.80-36,643.20-20,929.60

Finding the Fourth Proportional to 24,428.80, 36,643.20 and 20,929.60

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Solution

The fourth proportional to 24,428.80, 36,643.20 and 20,929.60 is: 31,394.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,428.80 : 36,643.20 = 20,929.60 : x
  2. Step 2: Convert to fraction form
    24,428.80/36,643.20 = 20,929.60/x
  3. Step 3: Cross multiply
    24,428.80x = 36,643.20 × 20,929.60
  4. Step 4: Simplify right side
    24,428.80x = 766,927,518.72
  5. Step 5: Solve for x
    x = 766,927,518.72/24,428.80
  6. Step 6: Final answer
    x = 31,394.40

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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.