Home / 28,031.80-42,047.70-14,909.80

Finding the Fourth Proportional to 28,031.80, 42,047.70 and 14,909.80

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Solution

The fourth proportional to 28,031.80, 42,047.70 and 14,909.80 is: 22,364.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,031.80 : 42,047.70 = 14,909.80 : x
  2. Step 2: Convert to fraction form
    28,031.80/42,047.70 = 14,909.80/x
  3. Step 3: Cross multiply
    28,031.80x = 42,047.70 × 14,909.80
  4. Step 4: Simplify right side
    28,031.80x = 626,922,797.46
  5. Step 5: Solve for x
    x = 626,922,797.46/28,031.80
  6. Step 6: Final answer
    x = 22,364.70

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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.