Home / 39,224.64-54,130.42-21,319.65

Finding the Fourth Proportional to 39,224.64, 54,130.42 and 21,319.65

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Solution

The fourth proportional to 39,224.64, 54,130.42 and 21,319.65 is: 29,421.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,224.64 : 54,130.42 = 21,319.65 : x
  2. Step 2: Convert to fraction form
    39,224.64/54,130.42 = 21,319.65/x
  3. Step 3: Cross multiply
    39,224.64x = 54,130.42 × 21,319.65
  4. Step 4: Simplify right side
    39,224.64x = 1,154,041,635.40
  5. Step 5: Solve for x
    x = 1,154,041,635.40/39,224.64
  6. Step 6: Final answer
    x = 29,421.35

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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.