Home / 28,520.47-42,807.21-14,490.46

Finding the Fourth Proportional to 28,520.47, 42,807.21 and 14,490.46

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Solution

The fourth proportional to 28,520.47, 42,807.21 and 14,490.46 is: 21,749.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,520.47 : 42,807.21 = 14,490.46 : x
  2. Step 2: Convert to fraction form
    28,520.47/42,807.21 = 14,490.46/x
  3. Step 3: Cross multiply
    28,520.47x = 42,807.21 × 14,490.46
  4. Step 4: Simplify right side
    28,520.47x = 620,296,164.22
  5. Step 5: Solve for x
    x = 620,296,164.22/28,520.47
  6. Step 6: Final answer
    x = 21,749.16

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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.