Home / 39,159.08-54,038.58-22,391

Finding the Fourth Proportional to 39,159.08, 54,038.58 and 22,391

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Solution

The fourth proportional to 39,159.08, 54,038.58 and 22,391 is: 30,899.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,159.08 : 54,038.58 = 22,391 : x
  2. Step 2: Convert to fraction form
    39,159.08/54,038.58 = 22,391/x
  3. Step 3: Cross multiply
    39,159.08x = 54,038.58 × 22,391
  4. Step 4: Simplify right side
    39,159.08x = 1,209,977,844.78
  5. Step 5: Solve for x
    x = 1,209,977,844.78/39,159.08
  6. Step 6: Final answer
    x = 30,899.04

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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.