Home / 28,417.23-39,216.71-15,670.97

Finding the Fourth Proportional to 28,417.23, 39,216.71 and 15,670.97

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Solution

The fourth proportional to 28,417.23, 39,216.71 and 15,670.97 is: 21,626.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,417.23 : 39,216.71 = 15,670.97 : x
  2. Step 2: Convert to fraction form
    28,417.23/39,216.71 = 15,670.97/x
  3. Step 3: Cross multiply
    28,417.23x = 39,216.71 × 15,670.97
  4. Step 4: Simplify right side
    28,417.23x = 614,563,787.92
  5. Step 5: Solve for x
    x = 614,563,787.92/28,417.23
  6. Step 6: Final answer
    x = 21,626.45

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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.