Home / 31,253.21-47,047.19-28,038.32

Finding the Fourth Proportional to 31,253.21, 47,047.19 and 28,038.32

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Solution

The fourth proportional to 31,253.21, 47,047.19 and 28,038.32 is: 42,207.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,253.21 : 47,047.19 = 28,038.32 : x
  2. Step 2: Convert to fraction form
    31,253.21/47,047.19 = 28,038.32/x
  3. Step 3: Cross multiply
    31,253.21x = 47,047.19 × 28,038.32
  4. Step 4: Simplify right side
    31,253.21x = 1,319,124,168.32
  5. Step 5: Solve for x
    x = 1,319,124,168.32/31,253.21
  6. Step 6: Final answer
    x = 42,207.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.