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Finding the Fourth Proportional to 19,300.51, 28,941.51 and 9,428.23

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Solution

The fourth proportional to 19,300.51, 28,941.51 and 9,428.23 is: 14,137.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,300.51 : 28,941.51 = 9,428.23 : x
  2. Step 2: Convert to fraction form
    19,300.51/28,941.51 = 9,428.23/x
  3. Step 3: Cross multiply
    19,300.51x = 28,941.51 × 9,428.23
  4. Step 4: Simplify right side
    19,300.51x = 272,867,068.12
  5. Step 5: Solve for x
    x = 272,867,068.12/19,300.51
  6. Step 6: Final answer
    x = 14,137.82

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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.