Home / 30,378.19-45,566.94-10,387.50

Finding the Fourth Proportional to 30,378.19, 45,566.94 and 10,387.50

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Solution

The fourth proportional to 30,378.19, 45,566.94 and 10,387.50 is: 15,581.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,378.19 : 45,566.94 = 10,387.50 : x
  2. Step 2: Convert to fraction form
    30,378.19/45,566.94 = 10,387.50/x
  3. Step 3: Cross multiply
    30,378.19x = 45,566.94 × 10,387.50
  4. Step 4: Simplify right side
    30,378.19x = 473,326,589.25
  5. Step 5: Solve for x
    x = 473,326,589.25/30,378.19
  6. Step 6: Final answer
    x = 15,581.13

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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.