Home / 21,533.61-29,713.71-12,460.53

Finding the Fourth Proportional to 21,533.61, 29,713.71 and 12,460.53

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Solution

The fourth proportional to 21,533.61, 29,713.71 and 12,460.53 is: 17,193.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,533.61 : 29,713.71 = 12,460.53 : x
  2. Step 2: Convert to fraction form
    21,533.61/29,713.71 = 12,460.53/x
  3. Step 3: Cross multiply
    21,533.61x = 29,713.71 × 12,460.53
  4. Step 4: Simplify right side
    21,533.61x = 370,248,574.87
  5. Step 5: Solve for x
    x = 370,248,574.87/21,533.61
  6. Step 6: Final answer
    x = 17,193.99

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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.