Home / 42,031.50-63,047.28-10,866.78

Finding the Fourth Proportional to 42,031.50, 63,047.28 and 10,866.78

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Solution

The fourth proportional to 42,031.50, 63,047.28 and 10,866.78 is: 16,300.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,031.50 : 63,047.28 = 10,866.78 : x
  2. Step 2: Convert to fraction form
    42,031.50/63,047.28 = 10,866.78/x
  3. Step 3: Cross multiply
    42,031.50x = 63,047.28 × 10,866.78
  4. Step 4: Simplify right side
    42,031.50x = 685,120,921.36
  5. Step 5: Solve for x
    x = 685,120,921.36/42,031.50
  6. Step 6: Final answer
    x = 16,300.18

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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.