Home / 30,946.16-42,699.48-19,011.44

Finding the Fourth Proportional to 30,946.16, 42,699.48 and 19,011.44

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Solution

The fourth proportional to 30,946.16, 42,699.48 and 19,011.44 is: 26,231.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,946.16 : 42,699.48 = 19,011.44 : x
  2. Step 2: Convert to fraction form
    30,946.16/42,699.48 = 19,011.44/x
  3. Step 3: Cross multiply
    30,946.16x = 42,699.48 × 19,011.44
  4. Step 4: Simplify right side
    30,946.16x = 811,778,602.05
  5. Step 5: Solve for x
    x = 811,778,602.05/30,946.16
  6. Step 6: Final answer
    x = 26,231.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.