Home / 38,970.28-53,782.50-22,208.68

Finding the Fourth Proportional to 38,970.28, 53,782.50 and 22,208.68

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Solution

The fourth proportional to 38,970.28, 53,782.50 and 22,208.68 is: 30,649.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,970.28 : 53,782.50 = 22,208.68 : x
  2. Step 2: Convert to fraction form
    38,970.28/53,782.50 = 22,208.68/x
  3. Step 3: Cross multiply
    38,970.28x = 53,782.50 × 22,208.68
  4. Step 4: Simplify right side
    38,970.28x = 1,194,438,332.10
  5. Step 5: Solve for x
    x = 1,194,438,332.10/38,970.28
  6. Step 6: Final answer
    x = 30,649.98

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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.