Home / 47,390.68-65,398.98-28,528.84

Finding the Fourth Proportional to 47,390.68, 65,398.98 and 28,528.84

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Solution

The fourth proportional to 47,390.68, 65,398.98 and 28,528.84 is: 39,369.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,390.68 : 65,398.98 = 28,528.84 : x
  2. Step 2: Convert to fraction form
    47,390.68/65,398.98 = 28,528.84/x
  3. Step 3: Cross multiply
    47,390.68x = 65,398.98 × 28,528.84
  4. Step 4: Simplify right side
    47,390.68x = 1,865,757,036.58
  5. Step 5: Solve for x
    x = 1,865,757,036.58/47,390.68
  6. Step 6: Final answer
    x = 39,369.70

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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.