Home / 47,287.60-65,253.70-28,168.76

Finding the Fourth Proportional to 47,287.60, 65,253.70 and 28,168.76

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Solution

The fourth proportional to 47,287.60, 65,253.70 and 28,168.76 is: 38,871.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,287.60 : 65,253.70 = 28,168.76 : x
  2. Step 2: Convert to fraction form
    47,287.60/65,253.70 = 28,168.76/x
  3. Step 3: Cross multiply
    47,287.60x = 65,253.70 × 28,168.76
  4. Step 4: Simplify right side
    47,287.60x = 1,838,116,012.76
  5. Step 5: Solve for x
    x = 1,838,116,012.76/47,287.60
  6. Step 6: Final answer
    x = 38,871.00

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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.