Home / 20,421.02-30,582.93-14,187.26

Finding the Fourth Proportional to 20,421.02, 30,582.93 and 14,187.26

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Solution

The fourth proportional to 20,421.02, 30,582.93 and 14,187.26 is: 21,247.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,421.02 : 30,582.93 = 14,187.26 : x
  2. Step 2: Convert to fraction form
    20,421.02/30,582.93 = 14,187.26/x
  3. Step 3: Cross multiply
    20,421.02x = 30,582.93 × 14,187.26
  4. Step 4: Simplify right side
    20,421.02x = 433,887,979.47
  5. Step 5: Solve for x
    x = 433,887,979.47/20,421.02
  6. Step 6: Final answer
    x = 21,247.13

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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.