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Finding the Fourth Proportional to 30,291.52, 45,437.76 and 15,458.56

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Solution

The fourth proportional to 30,291.52, 45,437.76 and 15,458.56 is: 23,188.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,291.52 : 45,437.76 = 15,458.56 : x
  2. Step 2: Convert to fraction form
    30,291.52/45,437.76 = 15,458.56/x
  3. Step 3: Cross multiply
    30,291.52x = 45,437.76 × 15,458.56
  4. Step 4: Simplify right side
    30,291.52x = 702,402,339.23
  5. Step 5: Solve for x
    x = 702,402,339.23/30,291.52
  6. Step 6: Final answer
    x = 23,188.08

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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.