Home / 30,158.18-45,240.37-10,436.70

Finding the Fourth Proportional to 30,158.18, 45,240.37 and 10,436.70

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Solution

The fourth proportional to 30,158.18, 45,240.37 and 10,436.70 is: 15,656.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,158.18 : 45,240.37 = 10,436.70 : x
  2. Step 2: Convert to fraction form
    30,158.18/45,240.37 = 10,436.70/x
  3. Step 3: Cross multiply
    30,158.18x = 45,240.37 × 10,436.70
  4. Step 4: Simplify right side
    30,158.18x = 472,160,117.40
  5. Step 5: Solve for x
    x = 472,160,117.40/30,158.18
  6. Step 6: Final answer
    x = 15,656.12

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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.