Home / 21,335.04-31,973.76-13,530.24

Finding the Fourth Proportional to 21,335.04, 31,973.76 and 13,530.24

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Solution

The fourth proportional to 21,335.04, 31,973.76 and 13,530.24 is: 20,277.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,335.04 : 31,973.76 = 13,530.24 : x
  2. Step 2: Convert to fraction form
    21,335.04/31,973.76 = 13,530.24/x
  3. Step 3: Cross multiply
    21,335.04x = 31,973.76 × 13,530.24
  4. Step 4: Simplify right side
    21,335.04x = 432,612,646.50
  5. Step 5: Solve for x
    x = 432,612,646.50/21,335.04
  6. Step 6: Final answer
    x = 20,277.10

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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.