Home / 19,266.90-28,900.35-10,031.70

Finding the Fourth Proportional to 19,266.90, 28,900.35 and 10,031.70

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Solution

The fourth proportional to 19,266.90, 28,900.35 and 10,031.70 is: 15,047.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,266.90 : 28,900.35 = 10,031.70 : x
  2. Step 2: Convert to fraction form
    19,266.90/28,900.35 = 10,031.70/x
  3. Step 3: Cross multiply
    19,266.90x = 28,900.35 × 10,031.70
  4. Step 4: Simplify right side
    19,266.90x = 289,919,641.10
  5. Step 5: Solve for x
    x = 289,919,641.10/19,266.90
  6. Step 6: Final answer
    x = 15,047.55

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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.