Home / 28,248.86-42,393.33-12,457.91

Finding the Fourth Proportional to 28,248.86, 42,393.33 and 12,457.91

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Solution

The fourth proportional to 28,248.86, 42,393.33 and 12,457.91 is: 18,695.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,248.86 : 42,393.33 = 12,457.91 : x
  2. Step 2: Convert to fraction form
    28,248.86/42,393.33 = 12,457.91/x
  3. Step 3: Cross multiply
    28,248.86x = 42,393.33 × 12,457.91
  4. Step 4: Simplify right side
    28,248.86x = 528,132,077.77
  5. Step 5: Solve for x
    x = 528,132,077.77/28,248.86
  6. Step 6: Final answer
    x = 18,695.70

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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.