Home / 47,358.31-65,362.93-28,239.32

Finding the Fourth Proportional to 47,358.31, 65,362.93 and 28,239.32

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Solution

The fourth proportional to 47,358.31, 65,362.93 and 28,239.32 is: 38,975.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,358.31 : 65,362.93 = 28,239.32 : x
  2. Step 2: Convert to fraction form
    47,358.31/65,362.93 = 28,239.32/x
  3. Step 3: Cross multiply
    47,358.31x = 65,362.93 × 28,239.32
  4. Step 4: Simplify right side
    47,358.31x = 1,845,804,696.41
  5. Step 5: Solve for x
    x = 1,845,804,696.41/47,358.31
  6. Step 6: Final answer
    x = 38,975.31

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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.