Home / 30,988.59-42,763.05-16,841.13

Finding the Fourth Proportional to 30,988.59, 42,763.05 and 16,841.13

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Solution

The fourth proportional to 30,988.59, 42,763.05 and 16,841.13 is: 23,240.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,988.59 : 42,763.05 = 16,841.13 : x
  2. Step 2: Convert to fraction form
    30,988.59/42,763.05 = 16,841.13/x
  3. Step 3: Cross multiply
    30,988.59x = 42,763.05 × 16,841.13
  4. Step 4: Simplify right side
    30,988.59x = 720,178,084.25
  5. Step 5: Solve for x
    x = 720,178,084.25/30,988.59
  6. Step 6: Final answer
    x = 23,240.10

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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.