Home / 35,947.56-53,928.63-12,590.40

Finding the Fourth Proportional to 35,947.56, 53,928.63 and 12,590.40

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Solution

The fourth proportional to 35,947.56, 53,928.63 and 12,590.40 is: 18,888.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,947.56 : 53,928.63 = 12,590.40 : x
  2. Step 2: Convert to fraction form
    35,947.56/53,928.63 = 12,590.40/x
  3. Step 3: Cross multiply
    35,947.56x = 53,928.63 × 12,590.40
  4. Step 4: Simplify right side
    35,947.56x = 678,983,023.15
  5. Step 5: Solve for x
    x = 678,983,023.15/35,947.56
  6. Step 6: Final answer
    x = 18,888.15

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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.