Home / 39,322.72-54,264.60-21,417.52

Finding the Fourth Proportional to 39,322.72, 54,264.60 and 21,417.52

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Solution

The fourth proportional to 39,322.72, 54,264.60 and 21,417.52 is: 29,555.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,322.72 : 54,264.60 = 21,417.52 : x
  2. Step 2: Convert to fraction form
    39,322.72/54,264.60 = 21,417.52/x
  3. Step 3: Cross multiply
    39,322.72x = 54,264.60 × 21,417.52
  4. Step 4: Simplify right side
    39,322.72x = 1,162,213,155.79
  5. Step 5: Solve for x
    x = 1,162,213,155.79/39,322.72
  6. Step 6: Final answer
    x = 29,555.77

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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.