Home / 42,364.94-63,547.83-12,783.02

Finding the Fourth Proportional to 42,364.94, 63,547.83 and 12,783.02

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Solution

The fourth proportional to 42,364.94, 63,547.83 and 12,783.02 is: 19,174.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,364.94 : 63,547.83 = 12,783.02 : x
  2. Step 2: Convert to fraction form
    42,364.94/63,547.83 = 12,783.02/x
  3. Step 3: Cross multiply
    42,364.94x = 63,547.83 × 12,783.02
  4. Step 4: Simplify right side
    42,364.94x = 812,332,864.11
  5. Step 5: Solve for x
    x = 812,332,864.11/42,364.94
  6. Step 6: Final answer
    x = 19,174.65

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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.