Home / 31,444.08-47,376.06-28,445.60

Finding the Fourth Proportional to 31,444.08, 47,376.06 and 28,445.60

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Solution

The fourth proportional to 31,444.08, 47,376.06 and 28,445.60 is: 42,858.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,444.08 : 47,376.06 = 28,445.60 : x
  2. Step 2: Convert to fraction form
    31,444.08/47,376.06 = 28,445.60/x
  3. Step 3: Cross multiply
    31,444.08x = 47,376.06 × 28,445.60
  4. Step 4: Simplify right side
    31,444.08x = 1,347,640,215.46
  5. Step 5: Solve for x
    x = 1,347,640,215.46/31,444.08
  6. Step 6: Final answer
    x = 42,858.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.