Home / 39,442.02-54,430.29-21,536.70

Finding the Fourth Proportional to 39,442.02, 54,430.29 and 21,536.70

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Solution

The fourth proportional to 39,442.02, 54,430.29 and 21,536.70 is: 29,720.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,442.02 : 54,430.29 = 21,536.70 : x
  2. Step 2: Convert to fraction form
    39,442.02/54,430.29 = 21,536.70/x
  3. Step 3: Cross multiply
    39,442.02x = 54,430.29 × 21,536.70
  4. Step 4: Simplify right side
    39,442.02x = 1,172,248,826.64
  5. Step 5: Solve for x
    x = 1,172,248,826.64/39,442.02
  6. Step 6: Final answer
    x = 29,720.81

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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.