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Finding the Fourth Proportional to 30,488.59, 45,746.52 and 19,392.40

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Solution

The fourth proportional to 30,488.59, 45,746.52 and 19,392.40 is: 29,097.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,488.59 : 45,746.52 = 19,392.40 : x
  2. Step 2: Convert to fraction form
    30,488.59/45,746.52 = 19,392.40/x
  3. Step 3: Cross multiply
    30,488.59x = 45,746.52 × 19,392.40
  4. Step 4: Simplify right side
    30,488.59x = 887,134,814.45
  5. Step 5: Solve for x
    x = 887,134,814.45/30,488.59
  6. Step 6: Final answer
    x = 29,097.27

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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.