Home / 39,224.77-54,130.74-21,319.78

Finding the Fourth Proportional to 39,224.77, 54,130.74 and 21,319.78

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Solution

The fourth proportional to 39,224.77, 54,130.74 and 21,319.78 is: 29,421.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,224.77 : 54,130.74 = 21,319.78 : x
  2. Step 2: Convert to fraction form
    39,224.77/54,130.74 = 21,319.78/x
  3. Step 3: Cross multiply
    39,224.77x = 54,130.74 × 21,319.78
  4. Step 4: Simplify right side
    39,224.77x = 1,154,055,252.76
  5. Step 5: Solve for x
    x = 1,154,055,252.76/39,224.77
  6. Step 6: Final answer
    x = 29,421.59

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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.