Home / 45,316.04-67,986.27-19,013.72

Finding the Fourth Proportional to 45,316.04, 67,986.27 and 19,013.72

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Solution

The fourth proportional to 45,316.04, 67,986.27 and 19,013.72 is: 28,525.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,316.04 : 67,986.27 = 19,013.72 : x
  2. Step 2: Convert to fraction form
    45,316.04/67,986.27 = 19,013.72/x
  3. Step 3: Cross multiply
    45,316.04x = 67,986.27 × 19,013.72
  4. Step 4: Simplify right side
    45,316.04x = 1,292,671,901.62
  5. Step 5: Solve for x
    x = 1,292,671,901.62/45,316.04
  6. Step 6: Final answer
    x = 28,525.70

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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.