Home / 20,966.01-28,926.02-14,239.98

Finding the Fourth Proportional to 20,966.01, 28,926.02 and 14,239.98

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Solution

The fourth proportional to 20,966.01, 28,926.02 and 14,239.98 is: 19,646.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,966.01 : 28,926.02 = 14,239.98 : x
  2. Step 2: Convert to fraction form
    20,966.01/28,926.02 = 14,239.98/x
  3. Step 3: Cross multiply
    20,966.01x = 28,926.02 × 14,239.98
  4. Step 4: Simplify right side
    20,966.01x = 411,905,875.08
  5. Step 5: Solve for x
    x = 411,905,875.08/20,966.01
  6. Step 6: Final answer
    x = 19,646.36

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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.