Home / 28,358.68-42,494.90-13,547.20

Finding the Fourth Proportional to 28,358.68, 42,494.90 and 13,547.20

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Solution

The fourth proportional to 28,358.68, 42,494.90 and 13,547.20 is: 20,300.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,358.68 : 42,494.90 = 13,547.20 : x
  2. Step 2: Convert to fraction form
    28,358.68/42,494.90 = 13,547.20/x
  3. Step 3: Cross multiply
    28,358.68x = 42,494.90 × 13,547.20
  4. Step 4: Simplify right side
    28,358.68x = 575,686,909.28
  5. Step 5: Solve for x
    x = 575,686,909.28/28,358.68
  6. Step 6: Final answer
    x = 20,300.20

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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.