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Finding the Fourth Proportional to 21,595.88, 29,810.04 and 13,094.58

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Solution

The fourth proportional to 21,595.88, 29,810.04 and 13,094.58 is: 18,075.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,595.88 : 29,810.04 = 13,094.58 : x
  2. Step 2: Convert to fraction form
    21,595.88/29,810.04 = 13,094.58/x
  3. Step 3: Cross multiply
    21,595.88x = 29,810.04 × 13,094.58
  4. Step 4: Simplify right side
    21,595.88x = 390,349,953.58
  5. Step 5: Solve for x
    x = 390,349,953.58/21,595.88
  6. Step 6: Final answer
    x = 18,075.20

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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.