Home / 28,445.16-42,661.36-15,970.76

Finding the Fourth Proportional to 28,445.16, 42,661.36 and 15,970.76

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Solution

The fourth proportional to 28,445.16, 42,661.36 and 15,970.76 is: 23,952.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,445.16 : 42,661.36 = 15,970.76 : x
  2. Step 2: Convert to fraction form
    28,445.16/42,661.36 = 15,970.76/x
  3. Step 3: Cross multiply
    28,445.16x = 42,661.36 × 15,970.76
  4. Step 4: Simplify right side
    28,445.16x = 681,334,341.83
  5. Step 5: Solve for x
    x = 681,334,341.83/28,445.16
  6. Step 6: Final answer
    x = 23,952.56

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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.