Home / 30,328.47-45,461.93-11,603.70

Finding the Fourth Proportional to 30,328.47, 45,461.93 and 11,603.70

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Solution

The fourth proportional to 30,328.47, 45,461.93 and 11,603.70 is: 17,393.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,328.47 : 45,461.93 = 11,603.70 : x
  2. Step 2: Convert to fraction form
    30,328.47/45,461.93 = 11,603.70/x
  3. Step 3: Cross multiply
    30,328.47x = 45,461.93 × 11,603.70
  4. Step 4: Simplify right side
    30,328.47x = 527,526,539.12
  5. Step 5: Solve for x
    x = 527,526,539.12/30,328.47
  6. Step 6: Final answer
    x = 17,393.77

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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.