Home / 28,130.40-42,244.20-15,008.40

Finding the Fourth Proportional to 28,130.40, 42,244.20 and 15,008.40

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Solution

The fourth proportional to 28,130.40, 42,244.20 and 15,008.40 is: 22,538.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,130.40 : 42,244.20 = 15,008.40 : x
  2. Step 2: Convert to fraction form
    28,130.40/42,244.20 = 15,008.40/x
  3. Step 3: Cross multiply
    28,130.40x = 42,244.20 × 15,008.40
  4. Step 4: Simplify right side
    28,130.40x = 634,017,851.28
  5. Step 5: Solve for x
    x = 634,017,851.28/28,130.40
  6. Step 6: Final answer
    x = 22,538.53

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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.