Home / 19,944.78-29,681.74-19,280.38

Finding the Fourth Proportional to 19,944.78, 29,681.74 and 19,280.38

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Solution

The fourth proportional to 19,944.78, 29,681.74 and 19,280.38 is: 28,692.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,944.78 : 29,681.74 = 19,280.38 : x
  2. Step 2: Convert to fraction form
    19,944.78/29,681.74 = 19,280.38/x
  3. Step 3: Cross multiply
    19,944.78x = 29,681.74 × 19,280.38
  4. Step 4: Simplify right side
    19,944.78x = 572,275,226.26
  5. Step 5: Solve for x
    x = 572,275,226.26/19,944.78
  6. Step 6: Final answer
    x = 28,692.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.