Home / 30,657.95-42,323.28-20,063.77

Finding the Fourth Proportional to 30,657.95, 42,323.28 and 20,063.77

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Solution

The fourth proportional to 30,657.95, 42,323.28 and 20,063.77 is: 27,698.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,657.95 : 42,323.28 = 20,063.77 : x
  2. Step 2: Convert to fraction form
    30,657.95/42,323.28 = 20,063.77/x
  3. Step 3: Cross multiply
    30,657.95x = 42,323.28 × 20,063.77
  4. Step 4: Simplify right side
    30,657.95x = 849,164,555.57
  5. Step 5: Solve for x
    x = 849,164,555.57/30,657.95
  6. Step 6: Final answer
    x = 27,698.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.