Home / 30,139.32-45,208.60-14,545.92

Finding the Fourth Proportional to 30,139.32, 45,208.60 and 14,545.92

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Solution

The fourth proportional to 30,139.32, 45,208.60 and 14,545.92 is: 21,818.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,139.32 : 45,208.60 = 14,545.92 : x
  2. Step 2: Convert to fraction form
    30,139.32/45,208.60 = 14,545.92/x
  3. Step 3: Cross multiply
    30,139.32x = 45,208.60 × 14,545.92
  4. Step 4: Simplify right side
    30,139.32x = 657,600,678.91
  5. Step 5: Solve for x
    x = 657,600,678.91/30,139.32
  6. Step 6: Final answer
    x = 21,818.70

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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.