Home / 14,385.90-21,545.41-13,887.01

Finding the Fourth Proportional to 14,385.90, 21,545.41 and 13,887.01

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Solution

The fourth proportional to 14,385.90, 21,545.41 and 13,887.01 is: 20,798.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,385.90 : 21,545.41 = 13,887.01 : x
  2. Step 2: Convert to fraction form
    14,385.90/21,545.41 = 13,887.01/x
  3. Step 3: Cross multiply
    14,385.90x = 21,545.41 × 13,887.01
  4. Step 4: Simplify right side
    14,385.90x = 299,201,342.38
  5. Step 5: Solve for x
    x = 299,201,342.38/14,385.90
  6. Step 6: Final answer
    x = 20,798.23

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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.