Home / 47,340.09-70,970.37-20,665.79

Finding the Fourth Proportional to 47,340.09, 70,970.37 and 20,665.79

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Solution

The fourth proportional to 47,340.09, 70,970.37 and 20,665.79 is: 30,981.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,340.09 : 70,970.37 = 20,665.79 : x
  2. Step 2: Convert to fraction form
    47,340.09/70,970.37 = 20,665.79/x
  3. Step 3: Cross multiply
    47,340.09x = 70,970.37 × 20,665.79
  4. Step 4: Simplify right side
    47,340.09x = 1,466,658,407.79
  5. Step 5: Solve for x
    x = 1,466,658,407.79/47,340.09
  6. Step 6: Final answer
    x = 30,981.32

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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.