Home / 28,223.68-38,948.88-15,648.52

Finding the Fourth Proportional to 28,223.68, 38,948.88 and 15,648.52

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Solution

The fourth proportional to 28,223.68, 38,948.88 and 15,648.52 is: 21,595.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,223.68 : 38,948.88 = 15,648.52 : x
  2. Step 2: Convert to fraction form
    28,223.68/38,948.88 = 15,648.52/x
  3. Step 3: Cross multiply
    28,223.68x = 38,948.88 × 15,648.52
  4. Step 4: Simplify right side
    28,223.68x = 609,492,327.66
  5. Step 5: Solve for x
    x = 609,492,327.66/28,223.68
  6. Step 6: Final answer
    x = 21,595.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.