Home / 39,452.65-54,443.81-21,547.72

Finding the Fourth Proportional to 39,452.65, 54,443.81 and 21,547.72

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Solution

The fourth proportional to 39,452.65, 54,443.81 and 21,547.72 is: 29,735.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,452.65 : 54,443.81 = 21,547.72 : x
  2. Step 2: Convert to fraction form
    39,452.65/54,443.81 = 21,547.72/x
  3. Step 3: Cross multiply
    39,452.65x = 54,443.81 × 21,547.72
  4. Step 4: Simplify right side
    39,452.65x = 1,173,140,109.72
  5. Step 5: Solve for x
    x = 1,173,140,109.72/39,452.65
  6. Step 6: Final answer
    x = 29,735.40

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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.