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Finding the Fourth Proportional to 30,730.35, 42,924.08 and 30,730.35

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Solution

The fourth proportional to 30,730.35, 42,924.08 and 30,730.35 is: 42,924.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,730.35 : 42,924.08 = 30,730.35 : x
  2. Step 2: Convert to fraction form
    30,730.35/42,924.08 = 30,730.35/x
  3. Step 3: Cross multiply
    30,730.35x = 42,924.08 × 30,730.35
  4. Step 4: Simplify right side
    30,730.35x = 1,319,071,848.18
  5. Step 5: Solve for x
    x = 1,319,071,848.18/30,730.35
  6. Step 6: Final answer
    x = 42,924.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.