Home / 19,947.84-29,925-7,472.16

Finding the Fourth Proportional to 19,947.84, 29,925 and 7,472.16

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Solution

The fourth proportional to 19,947.84, 29,925 and 7,472.16 is: 11,209.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,947.84 : 29,925 = 7,472.16 : x
  2. Step 2: Convert to fraction form
    19,947.84/29,925 = 7,472.16/x
  3. Step 3: Cross multiply
    19,947.84x = 29,925 × 7,472.16
  4. Step 4: Simplify right side
    19,947.84x = 223,604,388
  5. Step 5: Solve for x
    x = 223,604,388/19,947.84
  6. Step 6: Final answer
    x = 11,209.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.