Home / 31,962.80-47,886.60-28,276.40

Finding the Fourth Proportional to 31,962.80, 47,886.60 and 28,276.40

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Solution

The fourth proportional to 31,962.80, 47,886.60 and 28,276.40 is: 42,363.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,962.80 : 47,886.60 = 28,276.40 : x
  2. Step 2: Convert to fraction form
    31,962.80/47,886.60 = 28,276.40/x
  3. Step 3: Cross multiply
    31,962.80x = 47,886.60 × 28,276.40
  4. Step 4: Simplify right side
    31,962.80x = 1,354,060,656.24
  5. Step 5: Solve for x
    x = 1,354,060,656.24/31,962.80
  6. Step 6: Final answer
    x = 42,363.64

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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.