Home / 31,440.60-47,051.55-28,816.20

Finding the Fourth Proportional to 31,440.60, 47,051.55 and 28,816.20

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Solution

The fourth proportional to 31,440.60, 47,051.55 and 28,816.20 is: 43,124.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,440.60 : 47,051.55 = 28,816.20 : x
  2. Step 2: Convert to fraction form
    31,440.60/47,051.55 = 28,816.20/x
  3. Step 3: Cross multiply
    31,440.60x = 47,051.55 × 28,816.20
  4. Step 4: Simplify right side
    31,440.60x = 1,355,846,875.11
  5. Step 5: Solve for x
    x = 1,355,846,875.11/31,440.60
  6. Step 6: Final answer
    x = 43,124.08

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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.