Home / 31,557.86-47,300.45-12,817.32

Finding the Fourth Proportional to 31,557.86, 47,300.45 and 12,817.32

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Solution

The fourth proportional to 31,557.86, 47,300.45 and 12,817.32 is: 19,211.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,557.86 : 47,300.45 = 12,817.32 : x
  2. Step 2: Convert to fraction form
    31,557.86/47,300.45 = 12,817.32/x
  3. Step 3: Cross multiply
    31,557.86x = 47,300.45 × 12,817.32
  4. Step 4: Simplify right side
    31,557.86x = 606,264,939.71
  5. Step 5: Solve for x
    x = 606,264,939.71/31,557.86
  6. Step 6: Final answer
    x = 19,211.22

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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.