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Finding the Fourth Proportional to 28,652.54, 42,973.20 and 14,417.20

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Solution

The fourth proportional to 28,652.54, 42,973.20 and 14,417.20 is: 21,622.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,652.54 : 42,973.20 = 14,417.20 : x
  2. Step 2: Convert to fraction form
    28,652.54/42,973.20 = 14,417.20/x
  3. Step 3: Cross multiply
    28,652.54x = 42,973.20 × 14,417.20
  4. Step 4: Simplify right side
    28,652.54x = 619,553,219.04
  5. Step 5: Solve for x
    x = 619,553,219.04/28,652.54
  6. Step 6: Final answer
    x = 21,622.98

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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.