Home / 39,670.65-54,746.06-21,765.33

Finding the Fourth Proportional to 39,670.65, 54,746.06 and 21,765.33

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Solution

The fourth proportional to 39,670.65, 54,746.06 and 21,765.33 is: 30,036.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,670.65 : 54,746.06 = 21,765.33 : x
  2. Step 2: Convert to fraction form
    39,670.65/54,746.06 = 21,765.33/x
  3. Step 3: Cross multiply
    39,670.65x = 54,746.06 × 21,765.33
  4. Step 4: Simplify right side
    39,670.65x = 1,191,565,953.27
  5. Step 5: Solve for x
    x = 1,191,565,953.27/39,670.65
  6. Step 6: Final answer
    x = 30,036.46

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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.