Home / 19,031.40-28,547.10-9,667.80

Finding the Fourth Proportional to 19,031.40, 28,547.10 and 9,667.80

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Solution

The fourth proportional to 19,031.40, 28,547.10 and 9,667.80 is: 14,501.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,031.40 : 28,547.10 = 9,667.80 : x
  2. Step 2: Convert to fraction form
    19,031.40/28,547.10 = 9,667.80/x
  3. Step 3: Cross multiply
    19,031.40x = 28,547.10 × 9,667.80
  4. Step 4: Simplify right side
    19,031.40x = 275,987,653.38
  5. Step 5: Solve for x
    x = 275,987,653.38/19,031.40
  6. Step 6: Final answer
    x = 14,501.70

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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.