Home / 43,354.32-64,981.28-19,931.60

Finding the Fourth Proportional to 43,354.32, 64,981.28 and 19,931.60

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Solution

The fourth proportional to 43,354.32, 64,981.28 and 19,931.60 is: 29,874.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,354.32 : 64,981.28 = 19,931.60 : x
  2. Step 2: Convert to fraction form
    43,354.32/64,981.28 = 19,931.60/x
  3. Step 3: Cross multiply
    43,354.32x = 64,981.28 × 19,931.60
  4. Step 4: Simplify right side
    43,354.32x = 1,295,180,880.45
  5. Step 5: Solve for x
    x = 1,295,180,880.45/43,354.32
  6. Step 6: Final answer
    x = 29,874.32

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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.