Home / 30,654.27-45,962.93-19,988.55

Finding the Fourth Proportional to 30,654.27, 45,962.93 and 19,988.55

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Solution

The fourth proportional to 30,654.27, 45,962.93 and 19,988.55 is: 29,970.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,654.27 : 45,962.93 = 19,988.55 : x
  2. Step 2: Convert to fraction form
    30,654.27/45,962.93 = 19,988.55/x
  3. Step 3: Cross multiply
    30,654.27x = 45,962.93 × 19,988.55
  4. Step 4: Simplify right side
    30,654.27x = 918,732,224.51
  5. Step 5: Solve for x
    x = 918,732,224.51/30,654.27
  6. Step 6: Final answer
    x = 29,970.77

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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.